# 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. 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 »
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Q&A Related to "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 http://www.ehow.com/how-does_5257070_gas-closed-co...
 Gas molecules randomly move around; this increases with http://www.chacha.com/question/why-does-gas-in-a-c...
 gas molecules are in constant motion in the closed vessel and as the temperature in the vessel rises they move faster and exert more pressure. Eventually the vessel will explode if http://answers.yahoo.com/question/index?qid=200804...
 The gas molicules are moving - the sum of all the collisions with the walls of the container is called "pressure" http://wiki.answers.com/Q/How_does_a_gas_exert_pre...
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