Question

Calculate the ratio of the mean free paths of the molecules of two gases having molecular diameters 1 Å and 2 Å. The gases may be considered under identical conditions of temperature, pressure and volume.

Answer 1

l α \(\frac{1}{d^2}\)

d₁ = 1Å,

α₂ = 2Å

l₁:l₂ = 4: 1