Question

Why does the pressure exerted by a gas increase on heating?

Answer 1

Explanation:

1. Due to an increase in temperature, molecules gain more heat energy, get more excited and start more frequent random motion.
2. Due to this, they collide with the walls of the container more often with higher velocities.
3. These collisions develop pressure on the wall.
4. Hence, the pressure exerted by the gas on the walls of the container increases.