Why Does a Gas in a Closed Container Exert Pressure?

Answer

Gas pressure is the result of the collisions of gas molecules with a surface. In the case of a closed container, that surface is the walls of the container. Each time a molecule strikes one of the walls of its container, it exerts a small force. The aggregate effect of billions of molecules hitting the walls is what is measured as pressure.
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Why Does a Gas in a Closed Container Exert Pressure?
Gas pressure is the result of the collisions of gas molecules with a surface. In the case of a closed container, that surface is the walls of the container. A fundamental assumption of the kinetic theory of matter is that the molecules of all... More »
Difficulty: Easy
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