Certain amount of an ideal gas are contained in a closed vessel. The vessel is moving with a constant velocity v. The molecular mass of gas is M. The rise in temperature of the gas when the vessel is suddenly stopped is  (γ=CP/CV)

If m is the total mass of the gas then its kinetic energy =12mv2When the vessel is suddenly stopped then total kinetic energy will increase the temperature of the gas. Hence 12mv2=μCvΔT=mMCvΔT  [As Cv=Rγ−1⇒mMRγ−1ΔT=12mv2⇒ΔT=Mv2(γ−1)2R