Attractions have little effect on the elasticity of gas-gas collisions because they are brief and fast. These particle collisions exhibit insufficient time to significantly affect the entire system.
The Kinetic Molecular Theory (KMT) is a model used in order to describe the behavior of gases by understanding the behavior of an ideal gas.
According to this theory, collisions between particles of gases are elastic, and therefore the kinetic energy is conserved when they collide.
An elastic collision can be defined as a type of collision between two particles in which the total kinetic energy remains the same.
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