Mean free path: An ideal gas is kept in a rigid container. When its temperature is 100 K, the mean-free-path of the gas molecules is λ. What will be the mean-free-path of the molecules at 400 K?
A) 4λ
B) 2λ
C) λ
D) λ/2
E) λ/4

Question

Quizplus · Accepted Answer

The mean free path (λ) of gas molecules in an ideal gas is independent of temperature when the gas is kept in a rigid container. This is because the mean free path is primarily determined by the density and size of the gas molecules, which do not change in a rigid container. Therefore, even if the temperature changes, the mean free path remains the same.

Mean Free Path: an Ideal Gas Is Kept in a Rigid