Question

A gas exerts pressure on the wall of the container . Give reason

Answer 1

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 exertedby 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

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The pressure exerted by a gas is due to the random motion of particles in the gas. Gases have weak intermolecular forces and the particles in continuous random motion and these particles collide with the walls of the container. These collisions with the walls of the container exerts pressure on the gas

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