define critical volume and Critical pressure of gas ?
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Explanation:
The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied. And. The critical pressure of a substance is the pressure required to liquefy a gas at its critical temperature.
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Critical pressure
It is the pressure required to liquify a gas at the critical temperature.
Critical volume
It is the volume of 1 mole of gas at critical temperature and pressure
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