The temperature below which a gas should be cooled,before it can be liquefied by pressure only,is termed as:

State the differences between an ideal gas and a real gas.

If the mean free path of atoms is doubled,then the pressure of the gas will become:

$A$ real gas behaves as an ideal gas at

An ideal gas is enclosed in a cylinder at a pressure of $2 \, atm$ and a temperature of $300 \, K$. The mean time between two successive collisions is $6 \times 10^{-8} \, s$. If the pressure is doubled and the temperature is increased to $500 \, K$,the mean time between two successive collisions will be close to:

The mean free path of a molecule of $He$ gas is $\alpha$. Its mean free path along any arbitrary coordinate axis will be ...........