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Which of the following is correct for critical temperature ?

A

It is the highest temperature at which liquid and vapour can coexist

B

Beyond this temperature, there is no distinction between the two phases and a gas can not be liquefied by compression

C

At this temperature, the surface tension of the system is zero

D

At this temperature, the gas and the liquid phase have difference critical densities

Text Solution

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The correct Answer is:
A,B,C
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