A) \[R<P<S<Q\]
B) \[Q<S<R<P\]
C) \[Q<S<P<R\]
D) \[R<P<Q<S\]
Correct Answer: C
Solution :
As the value of van der Waals constant increases, ease of liquefaction of a gas also increases. The ascending order of van der Waals constants for gases P,Q, R, S is as \[\underset{(Q)}{\mathop{3.59}}\,<\underset{(S)}{\mathop{3.8}}\,<\underset{(P)}{\mathop{4.17}}\,<\underset{R}{\mathop{6.71}}\,\] Thus, the order of ease of liquification is \[Q<S<P<R\]
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