Question

For any gas, the mean free path at a particular pressure :

• A. Independent of temperature
• B. Decreases with rise in temperature
• C. Increases with rise in temperature
• D. Directly proportional to $T^2$

Answer 1

Answer: (C)

Increases with rise in temperature

As the temperature increases, the increase in the distance traveled per unit time is greater than the increase in the number of collision made by a single molecule per unit time.

Hence, the mean free path increases with an increase in temperature.