Question

According to the kinetic theory of gases, the effect of an increase in temperature on the distribution of molecular speeds is that

• A. The most probable speed increases
• B. The distribution becomes broader
• C. The fraction of molecules, with most probable speed increases
• D. Area under distribution curve remains the same as that of under lower temperature

Answer 1

The correct option is C

The fraction of molecules, with most probable speed increases

On heating the gas the kinetic energy of the particles increases and these particles strike the walls of container more frequently. Increase in temperature also increases the fraction of molecules which collide with the walls of the container.