The van der Waal's constants for three gases R, S and T are given below Gas a (atm L^2/mol^2) b (l/mol) R 5.2 0.420 S 3.8 0.038 T 2.3 0.032 The correct sequence of placing the easily liquefiable gas l

Question

The van der Waal's constants for three gases R, S and T are given below Gas a (atm L^2/mol^2) b (l/mol) R 5.2 0.420 S 3.8 0.038 T 2.3 0.032 The correct sequence of placing the easily liquefiable gas last and the one difficult to liquefy first is

Prashant Kotian · Accepted Answer

Correct answer: C. The ease of liquefaction is directly ∝ 'a'. Gas R is easiest (a=5.2) and T is most difficult (a=2.3) . Thus, the order placing difficult first and easiest last is T, S, R .

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