Which of the following gas molecules has the longest mean-free path ?

An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true? (A) the mean free path of the molecules decreases. (B)the mean collision time between the molecules decreases. (C ) the mean free path remains unchanged. (D) the mean collision time remains unchanged.

An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true? (A) the mean free path of the molecules decreases. (B)the mean collision time between the molecules decreases. (C ) the mean free path remains unchanged. (D) the mean collision time remains unchanged.

Which of the following has the maximum value of mean free path?

Which of the following has the maximum value of mean free path?

Longest mean free path stands for