Exam 19: The Kinetic Theory of Gases

An air bubble doubles in volume as it rises from the bottom of a lake (1000 kg/m³). Ignoring any temperature changes, the depth of the lake is:

If the molecules in a tank of hydrogen have the same rms speed as the molecules in a tank of oxygen, we may be sure that:

Ideal monatomic gas A is composed of molecules with mass m while ideal monatomic gas B is composed of molecules with mass 4m. The average molecular energies are the same if the ratio of the temperatures T_A/T_B is:

The pressures p and volumes V of the five ideal gases,with the same number of molecules, are given below. Which has the highest theperatures?

The rms speed of an oxygen molecule at 0 $\degree$ C is 460 m/s. If the molar mass of oxygen is 32 g and of helium is 4 g, then the rms speed of a helium molecule at 0 $\degree$ C is:

A given mass of gas is enclosed in a suitable container so that it may be maintained at constant volume. Under these conditions, there can be no change is what property of the gas?

Two monatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The ratio of the average molecular kinetic energy K_A/K_B is:

The mean free path of air molecules at room temperature and atmospheric pressure is about:

The specific heat at constant volume of an ideal gas depends on:

As the pressure in an ideal gas is increased isothermally the average molecular speed:

An ideal diatomic gas has a molar specific heat at constant pressure, C_p, of:

An ideal gas of N diatomic molecules has temperature T. If the number of molecules is doubled without changing the temperature, the internal energy increases by:

TV ^$\gamma$ is constant for an ideal gas undergoing an adiabatic process, where $\gamma$ is the ratio of heat capacities C_p/C_v. This is a direct consequence of:

Which of the following changes when the pressure of an ideal gas is changed isothermally?

A sample of argon gas (molar mass 40 g) is at four times the absolute temperature of a sample of hydrogen gas (molar mass 2 g). The ratio of the rms speed of the argon molecules to that of the hydrogen is:

An adiabatic process for an ideal gas is represented on a p-V diagram by:

The internal energy of an ideal gas depends on:

A sample of an ideal gas is compressed by a piston from 10 m³ to 5 m³ and simultaneously cooled from 273 $\degree$ C to 0 $\degree$ C. As a result there is:

The Maxwellian speed distribution provides a direct explanation of:

During a reversible adiabatic expansion of an ideal gas, which of the following is NOT true?