KT of Gases and static equilibrium

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The Kinetic Theory of gases posits that gas molecules are so small that their volumes are negligible, which is crucial for understanding gas behavior. The instructor suggested a link between this theory and static equilibrium, implying that gas particles can be in a state of equilibrium despite their constant motion. This apparent contradiction arises from the concept that while individual particles are in motion, their overall velocity distribution remains stable and predictable. The connection to static equilibrium lies in the statistical behavior of large numbers of particles, where macroscopic properties can appear constant even as individual molecules move. Understanding this relationship is essential for grasping the dynamics of gases in equilibrium.
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In a recent class, my instructor covered the Kinetic Theory of gases. My question is in regard to the theory which states

1) The size of the individual molecues in a gas are so small that their volumes can be considered negligible.

The instructor then mentioned that the paticles in the gas can be considered to be in static equlibrium. He hinted that this theory, in relation to static equilibrium would appear on the final. However, after looking through the textbook, I see nothing relating the two. Can someone explain how this theory is connected to, or can be applied tot he concept of static equilibrium? How are the particles in static equlibrium if accorded to KT, they are constantly moving?
 
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Their velocity distribution is static and in equilibrium.
 
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