Which of the following is not the assumption of kinetic theory of gases

The actual volume of the gaseous molecules is negligible as compared to the total volume of the gas

Molecules are perfectly elastic

The critical temperature is the measure of the kinetic energy of the molecules

The effect of gravity on motion of molecules is negligible

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Assumptions of kinematic theory of gases are

The gas consists of very small particles known as molecules
These particle have the same mass
The number of molecules is so large that statistical treatement canbe applied
These molecules are in constant, random and rapid motion.
Except during collisions, the interactions among moleculars are negligible.
The average kinetic energy of the gas particles depends only on the absolute temperature of the system.
It is not the on the critical but temperature