JEE Main 2015ChemistrySurface ChemistryEasyMCQ

JEE Main 2015 — Surface Chemistry Question with Solution

JEE Main 2015 (10 Apr Online)

Question

The following statements relate to the adsorption of gases on a solid surface. Identify the incorrect statement among them:

Choose an option

Show full solutionCorrect option: D
Correct answer
DOn adsorption, the residual forces on the surface are increased

Step-by-step explanation

Adsorption is spontaneous process ∆G is -ve. During adsorption randomness of adsorbate molecules reduced and ∆Stotal is +ve.

∆G=∆H-T∆S

∆H=∆G+T∆S

∆H is highly -ve and residual forces on surface are decreased.
 

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About this question

This is a previous-year question from JEE Main 2015, 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.