What is pressure in relation to a gas?

Question

A) the amount of particles bumping into each other.
B) the force an object exerts on a gas.
C) the force the gas is exerting on its container.

Answer 1

C) the force the gas is exerting on its container.

Pressure in relation to a gas is defined as the force that the gas exerts per unit area on the walls of its container. This is a result of gas particles colliding with the walls of the container, and the cumulative effect of these collisions creates the pressure.