JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which of the following is not correct regarding the adsorption of a gas on the surface of a solid?

(A)Enthalpy and entropy change is negative
(B)Adsorption is more for some specific substance
(C)On increasing temperature, adsorption increases progressivelyCorrect
(D)It is a reversible reaction

Answer: (C)

Solution

Adsorption of a gas on a solid is an exothermic process, so both and are negative, it is reversible, and it is specific to particular adsorbate–adsorbent pairs, so statements (A), (B) and (D) are all correct.

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Question ID VK-144671