What happens to the particle bombardment when the volume of a gas increases?

When the volume of a gas increases, the particle bombardment, or frequency of collisions of gas particles with the walls of the container, typically decreases. This occurs because, as the volume increases, the gas particles have more space to move around, resulting in a lower concentration of particles in any given area. Consequently, with fewer particles colliding with the walls over a specific amount of time, the overall rate of particle bombardment is reduced.

If the gas is held at a constant temperature, the kinetic energy of the particles remains the same, but because they are now spread out over a larger volume, the number of collisions per unit area and per unit time diminishes. This principle is aligned with the assumptions of the kinetic molecular theory, which helps to explain the behavior of gases under various conditions.