Question

State True or False.

The mean free path of molecules in gas increases and the number of collisions per unit volume decreases with the lowering of pressure.

• A. True
• B. False

Answer 1

The correct option is A True

As pressure decreases, the average distance between molecules increases and mean free path of molecules in gas increases.
And as the mean path increases, the number of collisions per unit volume decreases.

Thus the above statement is true.