Explain postulates of the kinetic theory of gases.

One mole of a monoatomic gas is mixed with three moles of a diatomic gas. What is the molecules specific heat of the mixture at constant volume? [8.311 moI^-1K^-1]

0.014 kg of nitrogen is enclosed in a vessel at a temperature of 27°C. How much heat has to be transferred to double the rms speed of its molecules.

Speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at -20°C? [Atomic mass of Ar =39.90, He =4.04]

Motor volume is occupied 1 moleof any (ideal) gas at standard temperature and pressure. Show that it is 22.4 litres.