Question

Gas exerts pressure on the walls of container because the molecules-

• A. Are loosing the kinetic energy
• B. Are getting stuck to the walls
• C. Are transferring their momentum to walls
• D. Are accelerated toward walls.

Answer 1

The correct option is C Are transferring their momentum to walls

Gas molecules are in random motion having some momentum and while colliding with the walls they transfer their momentum to the walls and this collective transfer of momentum from all the molecules to the walls appears as pressure exerted by gas on the container wall.