Law of corresponding states says that

Question

Options:

A . , two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same

B . The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature

C . No gas can be liquified above the critical temperature, howsoever high the pressure may be

D . The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories)

Answer: Option A

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