Question

How do air and water exert pressure on its container?

Answer 1

Answer:

The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces.The more particles that hit the walls, the higher the pressure.

Answer 2

Answer:

The liquid inside has air that exerts a downward pressure on it and it is held by the sides of the container. Therefore the pressure exerted by the air pushes the liquid down and against the sides of the container.The molecules moving inside hit the barrier, that force causes pressure.