Question

The mean free path of a gas varies with absolute temperature as :

• A. T
• B. T${}^{-1}$
• C. T${}^2$
• D. T${}^4$

Answer 1

The correct option is A T

The expression for mean free path $\lambda =\frac{RT}{\sqrt{2}\pi d^{2}NP}$ mean free path is directly proportional to Temperature

Hence, option A is correct