Question

For a fixed number of moles of a gas at constant volume, the pressure of the gas increases with rise of temperature due to

• A. Increased rate of collisions amongst molecules
• B. Increase in molecular attraction
• C. Increase in average molecular speed
• D. Decrease in mean free path

Answer 1

The correct option is C

Increase in average molecular speed

According to the kinetic theory of gases, the average kinetic energy of the molecules is directly proportional to the absolute temperature.