The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature $T$ (Kelvin) and mass $m$, is

The average kinetic energy of hydrogen molecules at $300\;K$ is $E.$ At the same temperature, the average kinetic energy of oxygen molecules will be

In the absence of intermolecular forces of attraction, the observed pressure $p$ will be

An ideal gas has molecules with 5 degrees of freedom. The ratio of specific heats at constant pressure $\left( {{C_P}} \right)$ and at constant volume $\left( {{C_V}} \right)$ is:

Mean free path of a gas molecule is

If pressure of $C{O_2}$ (real gas) in a container is given by $P = \frac{{RT}}{{2V - b}} - \frac{a}{{4{b^2}}},$ then mass of the gas in container is

The average thermal energy for a mono-atomic gas is: (${{\rm{k}}_{\rm{B}}}$ is Boltzmann constant and ${\rm{T}}$, absolute temperature)

According to the kinetic theory of gases, the pressure exerted by a gas is due to:

The kinetic energy of one g-mole of a gas at normal temperature and pressure is ($R = 8.31\;J/mol - K$)

The average thermal energy for a mono-atomic gas is: (${{\rm{k}}_{\rm{B}}}$ is Boltzmann constant and ${\rm{T}}$, absolute temperature)

The average kinetic energy of a helium atom at ${30^ \circ }C$ is