General Questions and Answers
![A gaseous mixture contains 5 6 g of carbon II oxide and rest carbon IV oxide when it is enclosed in a vessel of 10 dm at 298 K it recorded a pressure of 2 0 bar What is the partial pressure of each oxide of carbon](https://media.kunduz.com/media/sug-question-candidate/20211213200923667048-4108672.jpg?w=256)
Physical Chemistry
GeneralA gaseous mixture contains 5 6 g of carbon II oxide and rest carbon IV oxide when it is enclosed in a vessel of 10 dm at 298 K it recorded a pressure of 2 0 bar What is the partial pressure of each oxide of carbon
![Statement I In Finkelstein reaction the solvent used is dry acetone Statement II Dry acetone precipitates the NaCl or NaBr formed in the reaction and thus the reaction proceeds in the forward direction In the light of the above statements choose the correct answer from the options given below Statement I is false but Statement II is true Both statements I and II are true Both statements I and II are false Statement is true but statement II is](https://media.kunduz.com/media/sug-question-candidate/20211226130352677400-2921925.jpg?w=256)
Physical Chemistry
GeneralStatement I In Finkelstein reaction the solvent used is dry acetone Statement II Dry acetone precipitates the NaCl or NaBr formed in the reaction and thus the reaction proceeds in the forward direction In the light of the above statements choose the correct answer from the options given below Statement I is false but Statement II is true Both statements I and II are true Both statements I and II are false Statement is true but statement II is
![3 Which of the following statements is false about gases At high temperature and low pressure the ideal gas behavior is followed At high pressure the volume of the real gas is less than the ideal gas volume At low temperature and moderate pressure the attractive forces between particles are dominant At high pressure the molecular distance between gas particles approaches molecular diameter so repulsive forces are dominar](https://media.kunduz.com/media/sug-question-candidate/20211207144100227534-4160317.jpg?w=256)
Physical Chemistry
General3 Which of the following statements is false about gases At high temperature and low pressure the ideal gas behavior is followed At high pressure the volume of the real gas is less than the ideal gas volume At low temperature and moderate pressure the attractive forces between particles are dominant At high pressure the molecular distance between gas particles approaches molecular diameter so repulsive forces are dominar
![31 Identify the correct statement for change of Gibbs energy for a system AG system at constant temperature and pressure AIPMT Prelims 2006 0 the process is spontaneous 0 the system has attaine 1 If AG system 2 If AG system equilibrium 3 If AG 0 the system is still moving system a particular direction 0 the process is no 4 If AG system](https://media.kunduz.com/media/sug-question-candidate/20211226120205367139-3609511.jpg?w=256)
Physical Chemistry
General31 Identify the correct statement for change of Gibbs energy for a system AG system at constant temperature and pressure AIPMT Prelims 2006 0 the process is spontaneous 0 the system has attaine 1 If AG system 2 If AG system equilibrium 3 If AG 0 the system is still moving system a particular direction 0 the process is no 4 If AG system
![How many moles of ATP is obtained from the catabolism of 5g of a triglyceride made of a C16 fatty acid a C17 fatty acid and a C24 fatty acid Use the following molecular mass values for your calculations H 1g mol C 12g mol O 16g mol If you can also provide an explanation as to how to calculate how much water in Litres is produced that would be great](https://media.kunduz.com/media/sug-question-candidate/20211219115319565434-4188151.jpg?w=256)
Physical Chemistry
GeneralHow many moles of ATP is obtained from the catabolism of 5g of a triglyceride made of a C16 fatty acid a C17 fatty acid and a C24 fatty acid Use the following molecular mass values for your calculations H 1g mol C 12g mol O 16g mol If you can also provide an explanation as to how to calculate how much water in Litres is produced that would be great
![5 You have 15mL of a 0 3M solution of His Lys Leu Asp adjusted to pH 9 You titrate your solution with 10mL of 0 2M HCI Relevant pKa values are 2 1 3 8 6 0 9 8 and 10 5 a Draw the structure of the tetrapeptide that predominates in solution before you add any HCI 5 marks](https://media.kunduz.com/media/sug-question-candidate/20211220162703645082-3908296.jpg?w=256)
Physical Chemistry
General5 You have 15mL of a 0 3M solution of His Lys Leu Asp adjusted to pH 9 You titrate your solution with 10mL of 0 2M HCI Relevant pKa values are 2 1 3 8 6 0 9 8 and 10 5 a Draw the structure of the tetrapeptide that predominates in solution before you add any HCI 5 marks
![A effervescent tablet containing sodium bicarbonate and oxalic acid releases 0 25 mL of CO2 at T 298 15 K and p 1 atm If molar volume of CO2 is 25 0 L under such condition what is the percentage of sodium bicarbonate in each tablet Molar mass of NaHCO3 84 g mol O O O O 8 4 0 84 16 8 33 6](https://media.kunduz.com/media/sug-question-candidate/20211226081834778253-2179005.jpg?w=256)
Physical Chemistry
GeneralA effervescent tablet containing sodium bicarbonate and oxalic acid releases 0 25 mL of CO2 at T 298 15 K and p 1 atm If molar volume of CO2 is 25 0 L under such condition what is the percentage of sodium bicarbonate in each tablet Molar mass of NaHCO3 84 g mol O O O O 8 4 0 84 16 8 33 6
![Question 3 Let 21 and 22 be the complex roots of ax 2 bx c 0 where a b c 0 Then A 21 22 1 B 121 22 2 1211 1221 1 None of these Question 8 Let 21 and 22 be two roots of the equation 2 az b 0 z being complex Further assume that the origin 21 and 21 form an equilateral triangle Then a b a 2b 1 Point a 3b 1 Poin](https://media.kunduz.com/media/sug-question-candidate/20211214042529452325-4180719.jpg?w=256)
Physical Chemistry
GeneralQuestion 3 Let 21 and 22 be the complex roots of ax 2 bx c 0 where a b c 0 Then A 21 22 1 B 121 22 2 1211 1221 1 None of these Question 8 Let 21 and 22 be two roots of the equation 2 az b 0 z being complex Further assume that the origin 21 and 21 form an equilateral triangle Then a b a 2b 1 Point a 3b 1 Poin
![Isobutyl bromide on reaction with alc KOH followed by reaction with HBr gives Br Br x Br Br](https://media.kunduz.com/media/sug-question-candidate/20211226130634479321-2921925.jpg?w=256)
Physical Chemistry
GeneralIsobutyl bromide on reaction with alc KOH followed by reaction with HBr gives Br Br x Br Br
![Nitrogen and oxygen react to form nitric oxide NO All substances are in the gas phase If 0 473 atm of nitrogen and 0 416 atm of oxygen react what is the partial pressure of nitric oxide in mmHg when this reaction goes 64 complete The temperature and volume are constant](https://media.kunduz.com/media/sug-question-candidate/20211214003723483327-3536321.jpg?w=256)
Physical Chemistry
GeneralNitrogen and oxygen react to form nitric oxide NO All substances are in the gas phase If 0 473 atm of nitrogen and 0 416 atm of oxygen react what is the partial pressure of nitric oxide in mmHg when this reaction goes 64 complete The temperature and volume are constant
![K water 1 86 K kg mol The temperature at which ice begins to separate from a mixture of 10 mass ethylene glycol is A 1 86 C B 3 72 C D 3 C 40410 R 5 fe 59 6 34 23 20 K 1 86 K kg mol A 1 86 C B 3 72 C 3 3 C D 3 C](https://media.kunduz.com/media/sug-question-candidate/20211226104658005598-3687962.jpg?w=256)
Physical Chemistry
GeneralK water 1 86 K kg mol The temperature at which ice begins to separate from a mixture of 10 mass ethylene glycol is A 1 86 C B 3 72 C D 3 C 40410 R 5 fe 59 6 34 23 20 K 1 86 K kg mol A 1 86 C B 3 72 C 3 3 C D 3 C
![Which of the following statement s is are correct Pot Tetracyanocuperate I tetrahedral complex Sod Tetracyanonickelate II is a square planar complex Pot Tetrachloridopatinate II is a tetrahedral complex Tetraamminecopper II sulphate is a squa](https://media.kunduz.com/media/sug-question-candidate/20211226120218884723-4222215.jpg?w=256)
Physical Chemistry
GeneralWhich of the following statement s is are correct Pot Tetracyanocuperate I tetrahedral complex Sod Tetracyanonickelate II is a square planar complex Pot Tetrachloridopatinate II is a tetrahedral complex Tetraamminecopper II sulphate is a squa
![Which of the following will give a tertiary alcohol as product if reacting with C H5MgBr followed by hydrolysis HCHO CH3CHO min sec OLIO](https://media.kunduz.com/media/sug-question-candidate/20211227041927232831-2921925.jpg?w=256)
Physical Chemistry
GeneralWhich of the following will give a tertiary alcohol as product if reacting with C H5MgBr followed by hydrolysis HCHO CH3CHO min sec OLIO
![The following reaction is an example of 4NH3 g 50 g 4NO g 6H O g i displacement reaction iii redox reaction a i and iv c iii and iv ii combustion reaction iv neutralisation reaction b ii and iii d i and ii](https://media.kunduz.com/media/sug-question-candidate/20211226072620671138-3687962.jpg?w=256)
Physical Chemistry
GeneralThe following reaction is an example of 4NH3 g 50 g 4NO g 6H O g i displacement reaction iii redox reaction a i and iv c iii and iv ii combustion reaction iv neutralisation reaction b ii and iii d i and ii
![27 Arrange the following compounds in the increasing order of their melting points Cl CI Cl I Cl a I II III c II CI b III 1 11 d CI 2 III](https://media.kunduz.com/media/sug-question-candidate/20211213094124016190-3514195.jpg?w=256)
Physical Chemistry
General27 Arrange the following compounds in the increasing order of their melting points Cl CI Cl I Cl a I II III c II CI b III 1 11 d CI 2 III
![CH CH C CH Hg OAc NaBHA O O O B H6 H O OH D Relation between A and B C and D are Position chain Position Functional Chain Identical C Matamor L CH CH CH CH HBr CC A HBr R 0 B](https://media.kunduz.com/media/sug-question-candidate/20211226081931247892-2179005.jpg?w=256)
Physical Chemistry
GeneralCH CH C CH Hg OAc NaBHA O O O B H6 H O OH D Relation between A and B C and D are Position chain Position Functional Chain Identical C Matamor L CH CH CH CH HBr CC A HBr R 0 B
![A solution contains 0 100 M Ce 1 00 x 10 4 M Ce4 1 00 x 10 4 M Mn 0 100 M MnO4 and 1 00 HCIO4 For the following cell reaction calculate E and AG at the given conditions 5C e4 aq Mn aq 4H 0 1 0 193 V and 93 1 kJ 0 23 V and 111 kJ 0 02 V and 10 kJ 0 02 V and 10 kJ 5Ce aq MnO4 aq 8H aq](https://media.kunduz.com/media/sug-question-candidate/20211206142307288394-2035567.jpg?w=256)
Physical Chemistry
GeneralA solution contains 0 100 M Ce 1 00 x 10 4 M Ce4 1 00 x 10 4 M Mn 0 100 M MnO4 and 1 00 HCIO4 For the following cell reaction calculate E and AG at the given conditions 5C e4 aq Mn aq 4H 0 1 0 193 V and 93 1 kJ 0 23 V and 111 kJ 0 02 V and 10 kJ 0 02 V and 10 kJ 5Ce aq MnO4 aq 8H aq
![Sachin was suffering from problem of he visited a physician who advised him to take 0 025 dm of milk of magnesia for a fast relief He exactly followed what the doctor told him to do Out of curiosity he saw the label on milk of magnesia bottle and he found that there were different ingredients written on it and the concentration of milk of magnesia mentioned was 29 ppm Assuming the volume of milk of magnesia required for neutralization of acid is equal to intake of milk of magnesia help Sachin to find out the following How many moles of acid was produced in Sachin s stomach i M Write down the neutralization reaction of this process Mg OH 2HCl MgCl 24 2728 iii Calculate the concentration of acid produced in mol dm](https://media.kunduz.com/media/sug-question-candidate/20211213182557957045-4168778.jpg?w=256)
Physical Chemistry
GeneralSachin was suffering from problem of he visited a physician who advised him to take 0 025 dm of milk of magnesia for a fast relief He exactly followed what the doctor told him to do Out of curiosity he saw the label on milk of magnesia bottle and he found that there were different ingredients written on it and the concentration of milk of magnesia mentioned was 29 ppm Assuming the volume of milk of magnesia required for neutralization of acid is equal to intake of milk of magnesia help Sachin to find out the following How many moles of acid was produced in Sachin s stomach i M Write down the neutralization reaction of this process Mg OH 2HCl MgCl 24 2728 iii Calculate the concentration of acid produced in mol dm
![Benzene diazonium chloride C H N C1 was decomposed in the presence of hypophosphorous acid and the nitrogen evolved after drying was found to be 36 9 ml at one atmosphere and 27 C The amount of salt taken must be nearly 481 mg 210mg 1 3 2 240mg 4 140 mg found to contain 40 mg Cat2](https://media.kunduz.com/media/sug-question-candidate/20211213105630264108-4151297.jpg?w=256)
Physical Chemistry
GeneralBenzene diazonium chloride C H N C1 was decomposed in the presence of hypophosphorous acid and the nitrogen evolved after drying was found to be 36 9 ml at one atmosphere and 27 C The amount of salt taken must be nearly 481 mg 210mg 1 3 2 240mg 4 140 mg found to contain 40 mg Cat2
![2 gm of a coal sample was heated at 120 C for one hour and residue weighed 1 815 gm Further the sample was heated at 950 C for 8 minutes The residue weighed 0 998 gm Finally the sample was heated at 750 C for 30 minutes and residue left was 0 512 gm Calculate percentage of moisture volatile matter fixed carbon and ash in the coal sample](https://media.kunduz.com/media/sug-question-candidate/20211220120830862867-4176126.jpg?w=256)
Physical Chemistry
General2 gm of a coal sample was heated at 120 C for one hour and residue weighed 1 815 gm Further the sample was heated at 950 C for 8 minutes The residue weighed 0 998 gm Finally the sample was heated at 750 C for 30 minutes and residue left was 0 512 gm Calculate percentage of moisture volatile matter fixed carbon and ash in the coal sample
![One half cell in a voltaic cell is constructed from a silver wire electrode in a 0 10 M solution of AgNO3 The other half cell consists of a zinc electrode in a 0 025 M solution of Zn NO3 2 Calculate the cell potential E 0 763 V E Zn Zn Ag Ag 0 799 V](https://media.kunduz.com/media/sug-question-candidate/20211220010326706402-3536321.jpg?w=256)
Physical Chemistry
GeneralOne half cell in a voltaic cell is constructed from a silver wire electrode in a 0 10 M solution of AgNO3 The other half cell consists of a zinc electrode in a 0 025 M solution of Zn NO3 2 Calculate the cell potential E 0 763 V E Zn Zn Ag Ag 0 799 V
![a Cs most metallic non radioactive element H e Mniimum atomic radius b Halogens p block alkali metals s block c Fluorine maximum ve electron gain enthalp y lodine minimum ve electron gain enthalpy](https://media.kunduz.com/media/sug-question-candidate/20211206063820163682-3560118.jpg?w=256)
Physical Chemistry
Generala Cs most metallic non radioactive element H e Mniimum atomic radius b Halogens p block alkali metals s block c Fluorine maximum ve electron gain enthalp y lodine minimum ve electron gain enthalpy
![43 5 ml of 0 1 M Pb NO3 is mixed with 10 m of 0 02 M KI The amount of Pbl precipitated will be about B 10 4 mol 10 9 KG A 10 2 mol 5 ff 0 1 M Pb NO3 Phl A 10 mol G 24 G B 10 mol C 2x 10 mol 0 02 M KI 4 C 2 x 10 mol D 10 3 mol 431 26 AGRIG SKA D 10 mol](https://media.kunduz.com/media/sug-question-candidate/20211226101147968416-3687962.jpg?w=256)
Physical Chemistry
General43 5 ml of 0 1 M Pb NO3 is mixed with 10 m of 0 02 M KI The amount of Pbl precipitated will be about B 10 4 mol 10 9 KG A 10 2 mol 5 ff 0 1 M Pb NO3 Phl A 10 mol G 24 G B 10 mol C 2x 10 mol 0 02 M KI 4 C 2 x 10 mol D 10 3 mol 431 26 AGRIG SKA D 10 mol
![1 Through the reaction of zinc plus aqueous hydrochloric acid on a day when the temperature was 29 C and barometric pressure was 750 0 mm Hg 2 5 grams of hydrogen gas were collected over water What was the partial pressure of water in the collection flask A 30 7 atm B 15 4 atm C 0 95 atm D 0 039 atm E none of the above](https://media.kunduz.com/media/sug-question-candidate/20211220011452615849-4047702.jpg?w=256)
Physical Chemistry
General1 Through the reaction of zinc plus aqueous hydrochloric acid on a day when the temperature was 29 C and barometric pressure was 750 0 mm Hg 2 5 grams of hydrogen gas were collected over water What was the partial pressure of water in the collection flask A 30 7 atm B 15 4 atm C 0 95 atm D 0 039 atm E none of the above
![out of these LiCl has the highest lattice en ergy According to fajan s rule LiCI has the highe st covalent character But Ionic Character is directly proportional to lattice energy If LiCl has highest lattice e nergy shouldn t it have highest ionic charac ter](https://media.kunduz.com/media/sug-question-candidate/20211207082835359527-3514195.jpg?w=256)
Physical Chemistry
Generalout of these LiCl has the highest lattice en ergy According to fajan s rule LiCI has the highe st covalent character But Ionic Character is directly proportional to lattice energy If LiCl has highest lattice e nergy shouldn t it have highest ionic charac ter
![e t How many in the following are poor conductor of electricity Lemon juice Tap water Vinegar Distilled water Vegetable oil Sugar solution Milk Honey Soap solution Four 1 2 Five](https://media.kunduz.com/media/sug-question-candidate/20211206084939001481-3488620.jpg?w=256)
Physical Chemistry
Generale t How many in the following are poor conductor of electricity Lemon juice Tap water Vinegar Distilled water Vegetable oil Sugar solution Milk Honey Soap solution Four 1 2 Five
![3 3 S How much volume of HC1 43 by mass and specific gravity 0 9125 is required to completely neutralize 500 ml of 0 5N NaOH solution 1 25 ml 3 250 ml 50 ml of 2M H SO4 is titrated with 2 4 2 per mole to chloride and The remaining NaOH i ml of 0 1 N equil 4 23 25 ml 1250 ml](https://media.kunduz.com/media/sug-question-candidate/20211206191315155495-4151297.jpg?w=256)
Physical Chemistry
General3 3 S How much volume of HC1 43 by mass and specific gravity 0 9125 is required to completely neutralize 500 ml of 0 5N NaOH solution 1 25 ml 3 250 ml 50 ml of 2M H SO4 is titrated with 2 4 2 per mole to chloride and The remaining NaOH i ml of 0 1 N equil 4 23 25 ml 1250 ml
![21 The dissociation energy of CH4 g is 360 kcal mo and that of C H6 g is 620 kcal mol 1 The C bond energy is 1 260 kcal mol 1 3 130 kcal mol 1 2 180 kcal mol 1 4 80 kcal mol 1](https://media.kunduz.com/media/sug-question-candidate/20211226115209875760-3609511.jpg?w=256)
Physical Chemistry
General21 The dissociation energy of CH4 g is 360 kcal mo and that of C H6 g is 620 kcal mol 1 The C bond energy is 1 260 kcal mol 1 3 130 kcal mol 1 2 180 kcal mol 1 4 80 kcal mol 1
![PART A Determination of Optimal Wavelength Wavelength nm Absorbance A 430 450 470 490 510 530 550 570 0 159 0 243 0 320 0 358 0 421 0 450 0 467 0 480 590 0 439](https://media.kunduz.com/media/sug-question-candidate/20211213035836052446-4047702.jpg?w=256)
Physical Chemistry
GeneralPART A Determination of Optimal Wavelength Wavelength nm Absorbance A 430 450 470 490 510 530 550 570 0 159 0 243 0 320 0 358 0 421 0 450 0 467 0 480 590 0 439
![1 The solubility of salicylic acid in water is 7 8g 100ml at 100 C and 0 25g 100ml at 25 Estimate how much water is needed to recrystallize a 19g sample of salicylic acid A 150ml B 250ml C 300ml D 400ml](https://media.kunduz.com/media/sug-question-candidate/20211206040908444628-3536321.jpg?w=256)
Physical Chemistry
General1 The solubility of salicylic acid in water is 7 8g 100ml at 100 C and 0 25g 100ml at 25 Estimate how much water is needed to recrystallize a 19g sample of salicylic acid A 150ml B 250ml C 300ml D 400ml
![Cations Nati Nall Sodium Sodium Chlorida K 1 Potassium Cu 2 Copper Mg 2 Magnesim Ca 2 Calcium NH Ammonium 1 Ag Silver Chloride Al 3 luminium Oxide K 0 Potassium Oxide Sul sulphide Cu S Copper Sulphide Hydroxide Mg OH Magnesium 11 Hydrosude Nitrate Ca NO3 2 Calciumitrato Carbonate NH CO Ammonium Corborat S04 Sulphate POL Ag 504 Silver Sulphate Phosphate Alpon Aluminium Phosphate](https://media.kunduz.com/media/sug-question-candidate/20211226090033548847-3514195.jpg?w=256)
Physical Chemistry
GeneralCations Nati Nall Sodium Sodium Chlorida K 1 Potassium Cu 2 Copper Mg 2 Magnesim Ca 2 Calcium NH Ammonium 1 Ag Silver Chloride Al 3 luminium Oxide K 0 Potassium Oxide Sul sulphide Cu S Copper Sulphide Hydroxide Mg OH Magnesium 11 Hydrosude Nitrate Ca NO3 2 Calciumitrato Carbonate NH CO Ammonium Corborat S04 Sulphate POL Ag 504 Silver Sulphate Phosphate Alpon Aluminium Phosphate
![2 From the following reactions determine which one represents a standard enthalpy of formation AH KCI s a K g Ch g b Mg s O g MgO s c CO g O2 g CO g d C s 2 H g CH4 g](https://media.kunduz.com/media/sug-question-candidate/20211207051114612512-2467044.jpg?w=256)
Physical Chemistry
General2 From the following reactions determine which one represents a standard enthalpy of formation AH KCI s a K g Ch g b Mg s O g MgO s c CO g O2 g CO g d C s 2 H g CH4 g
![For the reaction A g 2B g C g D g K A B dt nitial pressure of A and B are respectively 0 60 atm and 0 80 atm At a time when pressure of C is 0 20 atm rate of the reaction relative to the initial rate is A C 1 6 1 4 B D 1 48 1 24](https://media.kunduz.com/media/sug-question-candidate/20211226063318211641-3573342.jpg?w=256)
Physical Chemistry
GeneralFor the reaction A g 2B g C g D g K A B dt nitial pressure of A and B are respectively 0 60 atm and 0 80 atm At a time when pressure of C is 0 20 atm rate of the reaction relative to the initial rate is A C 1 6 1 4 B D 1 48 1 24
![5 How many grams of water would there be in 100 0 g of hydrate How many moles mass of water in 100 0 g of hydrate moles of water in 100 0 g of hydrate 6 How many grams of CuCl are there mass of CuCl in 100 0 g of hydrate 100 0 g of hydrate How many moles](https://media.kunduz.com/media/sug-question-candidate/20211206075952215111-4138964.jpg?w=256)
Physical Chemistry
General5 How many grams of water would there be in 100 0 g of hydrate How many moles mass of water in 100 0 g of hydrate moles of water in 100 0 g of hydrate 6 How many grams of CuCl are there mass of CuCl in 100 0 g of hydrate 100 0 g of hydrate How many moles
![In the reaction P g 2 Q g 4 R g 3 S I When 1 mole of P and 1 mole of Q are allowed to react to the completion of reaction then O All P will be consumed O 4 mole of R will form O 2 mole of S will form O All Q will consumed](https://media.kunduz.com/media/sug-question-candidate/20211226065624166662-2289701.jpg?w=256)
Physical Chemistry
GeneralIn the reaction P g 2 Q g 4 R g 3 S I When 1 mole of P and 1 mole of Q are allowed to react to the completion of reaction then O All P will be consumed O 4 mole of R will form O 2 mole of S will form O All Q will consumed
![Example 5 21 A toy balloon blown up at 5 C has a volume of 480 mL At this stage the balloon is distended to 7 8th of its maximum stretching capacity a Will the balloon burst if it is brought to a room having temperature at 30 C b Calculate the temperature at which the balloon will burst](https://media.kunduz.com/media/sug-question-candidate/20211213201009496487-4108672.jpg?w=256)
Physical Chemistry
GeneralExample 5 21 A toy balloon blown up at 5 C has a volume of 480 mL At this stage the balloon is distended to 7 8th of its maximum stretching capacity a Will the balloon burst if it is brought to a room having temperature at 30 C b Calculate the temperature at which the balloon will burst
![An ideal gas expands adiabatically against vacuum Which of the following is correct for the given process A AS 0 B AT ve 4 C CLAPEN A AS 0 B AT ve C AU 0 D AP 0 OG Age Refool XXI HERI C AU 0 D AP 0](https://media.kunduz.com/media/sug-question-candidate/20211226104006164792-3687962.jpg?w=256)
Physical Chemistry
GeneralAn ideal gas expands adiabatically against vacuum Which of the following is correct for the given process A AS 0 B AT ve 4 C CLAPEN A AS 0 B AT ve C AU 0 D AP 0 OG Age Refool XXI HERI C AU 0 D AP 0
![2 Paragraph a N O g 3H g H O N H4 AH 76kcal b 4N g 3H O l 2NH3 g 3N O g AH 240 kcal c N H4 H O 2NH3 g 1 20 g AH 36 kcal d H O H g 1 20 g AH 68 kcal The enthalpy of formation in kcal mol of liquid N H4 is wer e Here er your answer here Back Space](https://media.kunduz.com/media/sug-question-candidate/20211226060114900283-4220732.jpg?w=256)
Physical Chemistry
General2 Paragraph a N O g 3H g H O N H4 AH 76kcal b 4N g 3H O l 2NH3 g 3N O g AH 240 kcal c N H4 H O 2NH3 g 1 20 g AH 36 kcal d H O H g 1 20 g AH 68 kcal The enthalpy of formation in kcal mol of liquid N H4 is wer e Here er your answer here Back Space
![Calculate the partition coefficient for the analyte when an unretained solute passes through a chromatography column in 3 7 min and analyte requires 8 4 min Assume the volume of mobile phase is 1 4 times than volume of stationary phase A 1 5 B 1 8 C 1 7 20](https://media.kunduz.com/media/sug-question-candidate/20211206051926803468-4155720.jpg?w=256)
Physical Chemistry
GeneralCalculate the partition coefficient for the analyte when an unretained solute passes through a chromatography column in 3 7 min and analyte requires 8 4 min Assume the volume of mobile phase is 1 4 times than volume of stationary phase A 1 5 B 1 8 C 1 7 20
![Two identical ideal gas samples an expanded from P V T to P by tw different processes 1 Reversible isothermal process II Reversible adiabatic process Identify correct option s W work done W I W II AU I AU II T 1 T II V I V II](https://media.kunduz.com/media/sug-question-candidate/20211226100446368081-3554091.jpg?w=256)
Physical Chemistry
GeneralTwo identical ideal gas samples an expanded from P V T to P by tw different processes 1 Reversible isothermal process II Reversible adiabatic process Identify correct option s W work done W I W II AU I AU II T 1 T II V I V II
![A system with charge no of electrons involved n is placed in an electric field with potential E volts Express the general form derivative expression with all the terms of Gibbs free energy function 5 pts](https://media.kunduz.com/media/sug-question-candidate/20211206070802062279-3443308.jpg?w=256)
Physical Chemistry
GeneralA system with charge no of electrons involved n is placed in an electric field with potential E volts Express the general form derivative expression with all the terms of Gibbs free energy function 5 pts
![6 7 Calculate the millimoles of Br produc 2 One gm of impure sodium carbonate is dissolved in water and the solution is made up to 250 ml 50 ml of this made up solution 50 ml of 0 1N HCI is added and the mix after shaking well requ 10 ml of 0 16 N NaOH solution for complete titration Calculate the purity of the sample imal places till you get the single digit answ](https://media.kunduz.com/media/sug-question-candidate/20211206070136039610-4114948.jpg?w=256)
Physical Chemistry
General6 7 Calculate the millimoles of Br produc 2 One gm of impure sodium carbonate is dissolved in water and the solution is made up to 250 ml 50 ml of this made up solution 50 ml of 0 1N HCI is added and the mix after shaking well requ 10 ml of 0 16 N NaOH solution for complete titration Calculate the purity of the sample imal places till you get the single digit answ
![On heating copper sulphate crystals blue at a very high temperature it changes to white coloured substance X Number of water molecules lost by one formula unit of copper sulphate during heating is](https://media.kunduz.com/media/sug-question-candidate/20211219113758388633-3560221.jpg?w=256)
Physical Chemistry
GeneralOn heating copper sulphate crystals blue at a very high temperature it changes to white coloured substance X Number of water molecules lost by one formula unit of copper sulphate during heating is
![this sample of CuSO solution Molar mass of CuSO4 5H O 250 g mol liberated on addition of excess KI to CuSO solution What is the mass of CuSO 5H O in 250 ml of ml Na S O3 solution of 0 01 M requires 18 ml CuSO solution at the end point of titration with 1 a 2Cu 41 Cu I I 4 b I 2S O 21 S40 1 2 77 g 2 1 11 g 3 0 52 g 4 4 0 69 g](https://media.kunduz.com/media/sug-question-candidate/20211206130547006581-4127860.jpg?w=256)
Physical Chemistry
Generalthis sample of CuSO solution Molar mass of CuSO4 5H O 250 g mol liberated on addition of excess KI to CuSO solution What is the mass of CuSO 5H O in 250 ml of ml Na S O3 solution of 0 01 M requires 18 ml CuSO solution at the end point of titration with 1 a 2Cu 41 Cu I I 4 b I 2S O 21 S40 1 2 77 g 2 1 11 g 3 0 52 g 4 4 0 69 g
![For the first order parallel reactions starting with 1 M of A which of the followin statement s is are correct A B A2K2C AK 3D A B C D is independent of time B C B D t C C 0 67 M](https://media.kunduz.com/media/sug-question-candidate/20211226063441330216-3573342.jpg?w=256)
Physical Chemistry
GeneralFor the first order parallel reactions starting with 1 M of A which of the followin statement s is are correct A B A2K2C AK 3D A B C D is independent of time B C B D t C C 0 67 M
![1 Calculate the moles of 2 nitrobenzaldehyde and acetone 2 Nitrobenzaldehyde 0 5 g MW 151 12 g mol Acetone 5 mL MW 58 08 g mol d 0 785 g mL 2 Why is so much acetone used in this reaction Synthesis of Indigo](https://media.kunduz.com/media/sug-question-candidate/20211207042038291802-3536321.jpg?w=256)
Physical Chemistry
General1 Calculate the moles of 2 nitrobenzaldehyde and acetone 2 Nitrobenzaldehyde 0 5 g MW 151 12 g mol Acetone 5 mL MW 58 08 g mol d 0 785 g mL 2 Why is so much acetone used in this reaction Synthesis of Indigo
![A 2 L flask containing nitrogen at 60 cm pressure is put into a communication with 4 L flask containing carbon monoxide at 48 cm pressure If the temperature is kept constant Calculate the final pressure of the mixture](https://media.kunduz.com/media/sug-question-candidate/20211213200753636143-4108672.jpg?w=256)
Physical Chemistry
GeneralA 2 L flask containing nitrogen at 60 cm pressure is put into a communication with 4 L flask containing carbon monoxide at 48 cm pressure If the temperature is kept constant Calculate the final pressure of the mixture
![Beaker A and B both contain 100 g of sol ution beaker A contains 28 g of solute X whereas beaker B contains 46 g of solute Y If after a long time beaker B was found to have a mass of 109 g then find the molar mass of X in g mol if the molar mass of Y is 23 g mol Assume only solutes are non v olatile and solvent is water](https://media.kunduz.com/media/sug-question-candidate/20211206042518083038-3514195.jpg?w=256)
Physical Chemistry
GeneralBeaker A and B both contain 100 g of sol ution beaker A contains 28 g of solute X whereas beaker B contains 46 g of solute Y If after a long time beaker B was found to have a mass of 109 g then find the molar mass of X in g mol if the molar mass of Y is 23 g mol Assume only solutes are non v olatile and solvent is water
![aken as zero therefore If 150 kJ of energy is needed for muscular work to walk a distance of one km then how much of glucose one has to consume to walk a distance of 5 km Provided only 30 energy is available for muscular work The enthalpy of combustion of glucose is 3000 kJ mot Energy consumed for walking a distance of 5 km 150](https://media.kunduz.com/media/sug-question-candidate/20211205172408543243-3609511.jpg?w=256)
Physical Chemistry
Generalaken as zero therefore If 150 kJ of energy is needed for muscular work to walk a distance of one km then how much of glucose one has to consume to walk a distance of 5 km Provided only 30 energy is available for muscular work The enthalpy of combustion of glucose is 3000 kJ mot Energy consumed for walking a distance of 5 km 150
![of acetic Consider the titrimetric determination acid 60 05 g mol in vinegar Titration of a 5 00 mL vinegar sample requires 16 15 mL of 0 250 M NaOH to reach the phenolphthalein endpoint Which is TRUE when the endpoint is over run Choose from the following choices below A Acetic acid is in excess B Sodium hydroxide is in excess C Acetic acid and sodium hydroxide are of equal amounts D Cannot be determined](https://media.kunduz.com/media/sug-question-candidate/20211220035527655582-3536321.jpg?w=256)
Physical Chemistry
Generalof acetic Consider the titrimetric determination acid 60 05 g mol in vinegar Titration of a 5 00 mL vinegar sample requires 16 15 mL of 0 250 M NaOH to reach the phenolphthalein endpoint Which is TRUE when the endpoint is over run Choose from the following choices below A Acetic acid is in excess B Sodium hydroxide is in excess C Acetic acid and sodium hydroxide are of equal amounts D Cannot be determined