JEE Main 2021 — Surface Chemistry Question with Solution
From: JEE Main 2021 (Online) 26th August Morning Shift
Question
Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?
Choose an option
Show full solutionCorrect option: C
Correct answer
CH < 0, S < 0
Step-by-step explanation
(i) Adsorption of gas at metal surface is an exothermic process of H < 0
(ii) As the adsorption of gas on metal surface reduces the free movement of gas molecules thus restricting its randomness hence S < 0
(ii) As the adsorption of gas on metal surface reduces the free movement of gas molecules thus restricting its randomness hence S < 0
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This is a previous-year question from JEE Main 2021, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.