JEE Main 2021ChemistrySurface ChemistryMediumMCQ

JEE Main 2021Surface Chemistry Question with Solution

JEE Main 2021 (26 Aug Shift 1)

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: D
Correct answer
DΔH<0,ΔS<0

Step-by-step explanation

Adsorption is spontaneous process therefore change in free energy is negative. Adsorption of gas on solid surface is exothermic process & entropy is decrease in this process so

ΔH<0,ΔS<0

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About this question

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.