Calculate the ratio of the mean free paths of the molecules of two gases having molecular diameters 1 A and 2 A. The gases may be considered under identical conditions of temperature, pressure, and volume.
Mean free path λ=2πd2n1 N= number of molecules per unit volume, d= diameter of molecules the condition for both gases are identical so n will be constant. or λ∝d21 or λ=2πd2n1 λ2λ1=d12d22=1222 λ1:λ2=4:1