Q.

Which of the following is not correct about postulates of kinetic molecular theory of gases? 

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a

Volume of the gas is due to the large number of molecules of the gas.

b

Pressure of the gas is due to the collision of molecules against the walls of the container.

c

The molecules move randomly with different speeds in different directions.

d

Average kinetic energy of molecules is directly proportional to the absolute temperature of the gas. 

answer is A.

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Detailed Solution

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It is not correct that volume of the gas is due to the large number of molecules of the gas, because volume of the gas is equal to volume of container.

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