JEE Main Chemistry question

Statement 1: Compressibility factor for non-ideal gases is always greater than one. Statement 2: Non-ideal gases generally exert lower pressure than predicted by the ideal gas equation.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is TrueCorrect

Answer: (D)

Solution

The compressibility factor can be either greater than 1 (repulsion dominates) or less than 1 (attraction dominates) for a real gas, so it is not "always" greater than one — Statement 1 is false. Real gases dominated by attractive forces do

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Question ID VK-134031