The degrees of freedom of a triatomic gas is

The number of rotational degrees of freedom of a diatomic molecule is:

The kinetic energy per gram mole for a diatomic gas at room temperature is:

State the law of equipartition of energy.

For two different gases $X$ and $Y,$ having degrees of freedom $f_1$ and $f_2$ and molar heat capacities at constant volume $C_{v_1}$ and $C_{v_2}$ respectively, for an adiabatic process, the $\ln P$ versus $\ln V$ graph is plotted as shown:

The ratio of average translational kinetic energy to rotational kinetic energy of a diatomic molecule at temperature $T$ is