A rigid diatomic molecule rotates about an axis perpendicular to the line joining the atoms. If the moment of inertia is $I$ and the angular momentum is $L$, what is the rotational kinetic energy of the molecule?

A gas is contained in a rigid, thermally insulated vessel. If the temperature of the gas is increased by heating, which of the following will NOT change?

Two identical containers hold two different ideal gases, P and Q, at the same temperature. The pressure of gas P is four times the pressure of gas Q. If the density of gas P is found to be 2.5 times the density of gas Q, determine the ratio of the molecular weights of P and Q.

A monoatomic ideal gas has how many degrees of freedom?

Calculate the total internal energy of a mixture of 4 moles of diatomic gas (neglecting vibrational modes) and 2 moles of monatomic gas at temperature $T$.

Supposing the distance between the atoms of a diatomic gas to be constant, its specific heat at constant volume per mole (gram mole) is

Water is used to cool radiators of engines, because

A cylinder rolls without slipping down an inclined plane, the number of degrees of freedom it has, is

One mole of an ideal monatomic gas undergoes a process described by the equation $PV^3 = ext{constant}$. The heat capacity of the gas during this process is:

A rigid diatomic molecule rotates about an axis perpendicular to the line joining the atoms. If the moment of inertia is $I$ and the angular momentum is $L$, what is the rotational kinetic energy of the molecule?

For an ideal gas of diatomic molecules