Define critical temperature, critical pressure and critical volume.

1.	Define critical temperature, critical pressure and critical volume.
Answer» SOLUTION :Critical temperature. It is the temperature of a substance in gaseous state, below which the GAS can be liquified by PRESSURE only and above which the gas can not be liquified. So a gas is SIMPLY a vapour below its critical temperature. Critical pressure. It is a pressure required to liquify a gas at its critical temperature.Critical VOLUME. It is the volume occupied by one gm of gaseous substance at critical temperature and critical pressure

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Define critical temperature, critical pressure and critical volume.

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