FOR DIFFERENT COMPETITIVE EXAMINATIONS

The gas equation $\mathrm{PV}=\mathrm{RT}$ describes the behaviour of a real gas fairly accurately at:

The average translational kinetic energy of the molecules of a gas will be doubled if :

Select the correct alternative (s): 

Let $\overline{v}$,$v_{rms}$ and $v_p$ respectively denote the mean speed, root-mean-square speed and most probable speed of the molecules in an ideal monatomic gas at absolute temperature $T$. The mass of the molecule is $m$. Then

Critical temperature is that temperature:

Critical temperature of water vapour is:

An ideal gas is expanding such that $P{T}^2$$=$ constant. The coefficient of volume expansion of the gas is:

A real gas behaves like an ideal gas if its:

The mean free path of molecules of a gas (radius $r$) is inversely proportional to: