The size of a gas particle is negligibly small. the average kinetic energy of a particle is proportional to its temperature in kelvins. the collision of one particle with another (or with the walls of its container) is completely elastic. which postulate(s) are needed to explain the increase in pressure of a gas with temperature?

The average kinetic energy of a particle is proportional to its temperature in kelvins.

Explanation:

Kinetic molecular theory postulates:-

Out of the given postulates, the postulate which can be used to explain the increase in pressure of a gas with temperature is:- The average kinetic energy of a particle is proportional to its temperature in kelvins.

This is because increase in the kinetic energy demonstrate that the molecules are moving faster which leads to greater pressure. Thus, Pressure is directly proportional to the kinetic energy which in turn is directly proportional to temperature.

So, Pressure is directly proportional to the temperature.

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