mention the condition which is maintained for liquifaction of gases
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It appears from the characteristics of isothermals for different gases obtained from experiments of Amagat and others that for every gas there is a limiting value of temperature called the critical temperature above which a gas can never be liquefied by pressure alone, however high the pressure may be. So, the essential condition of liquefaction is that the temperature of the gas must be below its critical temperature.Table shows the values of critical temperature and pressure of some gases.
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Your answer ➡
It appears from the characteristics of isothermals for different gases obtained from experiments of Amagat and others that for every gas there is a limiting value of temperature called the critical temperature above which a gas can never be liquefied by pressure alone, however high the pressure may be. So, the essential condition of liquefaction is that the temperature of the gas must be below its critical temperature.Table shows the values of critical temperature and pressure of some gases.
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