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Q.

Write the postulates of kinetic molecular theory of gases.

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Detailed Solution

Postulates :
1) Gases contain large number of tiny particles called molecules.
2) Molecules move randomly in all directions, colloiding with each other, and with walls of the container then direction change.
3) The volume of the molecule is negligible when compared to the volume of the gas.
4) Molecules are electrically neutral, there are no attractive or repulsive forces between them.
5) The pressure of the gas is due to collision of gas molecules on the wall of the container.
6) The molecular collisions are perfectly elastic.
7) Molecular collisions are unaffected by gravity.
8) Average kinetic energy of a gas molecules is directly proportional to absolute temperature.
EKT

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