Assumption of Kinetic Theory of Gases – Rankers Physics
Topic: Thermal Physics
Subtopic: Kinetic Theory of Gases

Assumption of Kinetic Theory of Gases

Which of the following is not the correct assumption of kinetic theory of gases?
No intermolecular force acts between gas molecules.
The volume of molecules is negligible in comparison to the volume of gas.
Molecules only collide with the walls of container, there is no collision among the molecules.
All collisions are elastic.

Solution:

One of the postulates of the kinetic theory of gases is that gas molecules collide elastically with each other as well as with the walls of the container. Hence, the assumption that there are no collisions among molecules is incorrect.

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