Energy of $10$ non-rigid diatomic molecules at temperature $T$ is:

Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupied by atoms. The internal energy of a mole of the gas at temperature $T$ is $......RT$.

The total thermal energy associated with $200 \, g$ of oxygen at $27 \, ^\circ C$ is ......... $J$. (Assume oxygen molecules as rigid rotators.)

$A$ monoatomic gas molecule has

When the temperature of a gas is increased,does the degree of freedom change?

$A$ polyatomic ideal gas has $24$ vibrational modes. What is the value of $\gamma$ ?