Question

The mean free path λ of molecules is given by

(A) \(\sqrt{\frac{2}{πnd^2}}\)

(B) \(\frac{1}{πnd^2}\)

(C) \(\frac{1}{\sqrt{2}πnd^2}\)

(D) \(\frac{1}{\sqrt{2πnd}}\)

where n is the number of molecules per unit volume and d is the diameter of the molecules.

Answer 1

C) \(\frac{1}{\sqrt{2}πnd^2}\)