MHT CET 2026 Chemistry question

Not in JEE Main or NEET syllabus

Which of the following statements is correct for the spontaneous adsorption of a gas?

(A) is negative and, therefore should be highly positive
(B) is negative and therefore, should be highly negative.Correct
(C) is positive and therefore, should be negative
(D) is positive and therefore, should also be highly positive.

Answer: (B)

Solution

In adsorption of a gas on a solid surface the gas molecules become confined to the surface, so randomness decreases and is negative. A process is spontaneous only if . With negative, the term is positive, so must be

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Question ID VK-097724