The ratio of the specific heats $${{{C_p}} \over {{C_v}}} = \gamma $$ in terms of degrees of freedom (n) is given by

A monatomic gas at a pressure P, having a volume V expands isothermally to a volume 2V and then adiabatically to a volume 16V. The final pressure of the gas is (Take $$\gamma $$ = 5/3)

A thermodynamic system undergoes cyclic process ABCDA as shown in figure. The work done by the system in the cycle is

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