Q13 of 47 Page 12

Why do gases exert more pressure on the walls of the container than solids do?

i. Gases exert more pressure on the walls of the container than solids do as the molecules are in continuous random motion due to its kinetic energy.


ii. Both attractive and repulsive forces exist between the molecules which is the internal energy of gas molecules. This internal energy gives velocity to the particles, in turn, giving them the internal energy.


iii. Due to this continuous movement, the gas molecules not only collide with each other but also collide with the walls of the container.


iv. When one molecule collides with the wall, they exert a small force on the wall. The total 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.


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