1.

Which one of the following is / true :- (i) At critical temp the surface separating two phases disappears (ii) below critical temperature a gas is called vapour (iii) A gas can't be liquified below critical temp. (iv) Higher the critical temp. difficult to liquify a gas

Answer»

(i),(II),(IV)
(i),(ii),(iv)
(III),(iv)
(i),(ii)

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