Question

# The temperature to which a gas must be cooled before it can be liquefied by pressure alone is called its

A
Critical temperature
B
Saturation point
C
Boiling point
D
Freezing point

Solution

## The correct option is A Critical temperature$$Answer:-$$ AIn this P-V curve the isotherm having $$T_c$$ is that critical temperature and corresponding to that there is critical pressure $$P_c$$ .Critical temperature is the temperature of a gas in its critical state, above which it cannot be liquefied by pressure alone.Critical pressure is the pressure of a gas or vapour in its critical state.Physics

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