A CUP HOLDS 500 GRAMS OF WATER c 4 19 J g C AT A TEMPERATURE

40 3 2 kg of ice at 10 C just melts with m mass of steam at 100 C then m is equal to cal g CA Sice 0 5 1 800 g 3 425 g IEW 2 625 g 4 325 g

The specific gravity of ice is 0 9 Find area in m of the smallest slab of ice of height 0 5 m floating in fresh water that will just support a 100 kg man 200

A cube of ice floats partly in water and partly in K oil Fig 1 Find the ratio of the volume of ice immersed in water to that in K oil Specific gravity of K oil is 0 8 and that of ice is 0 9 K Oil Water

10 gm of ice at 0 C is kept in a calorimeter of water equivalent 10 gm How much heat should be supplied to the apparatus to evaporate the water thus formed Neglect loss of heat 1 6200 cal 313600 cal 2 7200 cal 4 8200 cal

1 Q 4nR G 2 Q 4nR 0 1 2 3 4TR Q o 4 4 Q 4nR 0 A slab of stone of area 0 36 m and thickness 0 1 m is exposed on the lower surface to steam at 100 C A block of ice at 0 C rests on the upper surface of the slab In one hour 4 8 kg of ice is melted The thermal conductivity of slab is Given latent heat of fusion of ice 3 36 x 10 J kg AIPMT 2012 1 24 J m s C 2 1 29 J m s C 3 2 05 J m s C 4 1 02 J m s C Certain quantity of water cools from 70 C to 60 C in the first 5 minutes and to 54 C in the next 5 minutes The tem

Find the heat energy required to raise the temperature of n moles of a gas from To to 2To if its molar heat capacity varies as shown in the diagram The equation of the curve is CT constant CA 4C C T 2T

One day in the morning Ramesh filled up 1 3 bucket of hot water from geyser to take bath Remaining 2 3 was to be filled by cold water at room temperature to bring mixture to a comfortable temperature Suddenly Ramesh had to attend to something which would take some times say 5 10 minutes before he could take bath Now he had two options i fill the remaining bucket completely by cold water and then attend to the work ii first attend to the work and fill the remaining bucket just before taking bath Which option do you think would have kept water warmer Explain

2 In a thermocouple the temperature of the cold junction and the neutral temperature are 40 C and 275 C respectively If the cold junction temperature is increased by 60 C the neutral temperature and temperature of inversion respectively become a 275 C 530 C c 275 C 590 C b 355 C 530 C d 355 C 590 C

In an experiment an object is heated The data from the experiment is shown The energy transferred to the object is 3 0 kJ The mass of the object is 2 0 kg The rise in temperature of the object is 10 C The specific heat capacity of the object is 150 J kg C What is the thermal capacity of the object A 30J C B 300J C C 3000 J C D 9000 JA

slow A DIOCK converted into steam at 100 C Which of the following curves best represents the event T 5 1 1 3 t 2 4 4 If is conduc variatio 14 1