Kinetic Theory of Gases Questions and Answers

Use LeChatelier's Principle to answer the following set of questions: 2NO(g) + O2(g) « 2NO2(g) + heat a. For the reaction shown above, what would happen to the concentration of reactants if pressure were increased on the system? b. If the NO₂ is increased, how will the equilibrium be affected? What will happen to the concentration of the oxygen gas? c. If more heat is added by raising the temperature, which way will the reaction shift? d. Is the above reaction, endo- or exo-thermic? e. If a reaction shifts right, does that imply it is a forward or reverse reaction? Reactant or product favored? Will it create more or less products? f. What are the factors that result in no shift or no effect? g. Write the equilibrium expression for the above reaction.

When heat transfers from warmer to cooler, the molecules spread out and speed up move closer and slow down move closer and speed up move closer and speed up

The solar corona is a very hot atmosphere surrounding the visible surface of the sun. X-ray emissions from the corona show that its temperature is about 2 x 10^6 K. The gas pressure in the corona is about 0.03 Pa. Estimate the number density of particles in the solar corona. Express your answer in particles per meter cubed.

A steel rod is 3.00 cm in diameter at 25°C. A brass ring has an interior diameter of 2.992 cm at 25°. At what common temperature will the ring just slide onto the rod? (take, as = 11 x 10^-60C^-1, ab = 19 x 10^60C^-1)

z points Large helium-filled balloons are used to lift scientific equipment to high altitudes. What is the pressure in atm inside such a balloon if it starts out at sea level with a tempera of 11.610.0°C and rises to an altitude where its volume is twenty times the original volume and its temperature is -30.1°C ?

An ideal gas is taken through a cyclic thermo dynamical process through four steps. The amounts of heat involved in steps are Q₁ = 5960J, Q2 = -5585J, Q3 = -2980J, Q4 = 3645J ; respectively, the corresponding works involved are W₁ = 2200, W₂ = -825J, W3= -1100J and W4 respectively. Find the value of W4 and efficiency of the cycle A 1315 J, 10% B 765 J, 11% C both of them D none of these

0.517 moles of an ideal gas are confined to a rigid container (V = 6.1 L). The pressure of gas at T = 596 K was 5.11 atm. What is the pressure (in atm) at T = 1,375?

Ideal gases are often studied at standard ambient temperature and pressure (SATP). The International Union of Pure and Applied Chemistry (IUPAC) defines SATP to be T=25° C and P = 100 kPa.

What is the pressure of 350 m³ of a given gas containing 3.7 x 10^25 molecules held at a temperature of 85°C? (Use 1.38 x 10^-23 J/K for Boltzmann's Constant.) Round to the nearest whole Pascal of pressure. 257 Pa 523 Pa 1024 Pa 845 Pa

A rigid cylinder with a movable piston contains a sample of hydrogen gas. At 330. K, this sample has a pressure of 150. kPa and a volume of 3.50. L. What is the volume of this sample at STP? A)0.233 L B)1.96 L C)4.29 L D)6.26 L

A flask contains carbon monoxide and carbon dioxide gases. The partial pressures of each are 2235 psi and 1125 psi, respectively. What is the total pressure in the flask in psi?

A gas is contained in a thick-walled balloon. When the pressure changes from 319 mm Hg to 215 mm Hg, the volume changes from 0.558 L to ______ L and the temperature changes from 115 K to 387 K.

A gas is contained in a thick-walled balloon. When the pressure changes from 45.0 bar to 96.0 bar, the volume changes from 1.20 L to L and the temperature changes from 314 K to 420 K.

According to the kinetic molecular theory, Particles present in matter are in constant rest. Matter possesses definite Internal energy. All collisions between particles are inelastic in nature. Matter has no mass but occupy a definite volume.

If the gas in a confined container (constant volume) were to have its temperature raised from 55 degrees C to 160 degrees C, what would the final gage pressure be if the initial pressure were 220 psig? Note: Temperature and pressure must be converted to their absolute values. This is a direct proportion. C° +273 = Kº PSIG + 14.7 = PSIA (A)295.13 psig (B)309.83 psig (C)166.65 psig

Pr4. An ideal gas is contained in a 8-L closed container at 20 degrees C. If the number of molecules in the gas is 15 x 1023 (one mole of gas contains 6.022 x 1023 molecules and 1 atm = 1.01 x 105 Pa, 1L-10^-3 m^3) a) What is the temperature in K and the volume in m^3 of the gas? b) How many moles of gas is in the container? c) What is the pressure of the gas in atm? d) If the pressure is increased to 10 atm, volume is kept constant and half of the molecules released what is the temperature of the gas in C?