JEE Main 2021ChemistrySurface ChemistryAdsorptionmediumNumerical

JEE Main 2021 — Surface Chemistry Question with Solution

From: JEE Main 2021 (Online) 31st August Evening Shift

Question

CH4 is absorbed on 1g charcoal at 0C following the Freundlich adsorpiton isotherm 10.0 mL of CH4 is adsorbed at 100 mm of Hg, whereas 15.0 mL is adsorbed at 200 mm of Hg. The volume of CH4 adsorbed at 300 mm of Hg is 10x mL. The value of x is _________ 10-2.

(Nearest integer) [Use log102 = 0.3010, log103 = 0.4771]

Enter your answer

Show full solutionCorrect answer: 128
Correct answer
128

Step-by-step explanation

We know

; using (x V)

..... (1)

..... (2)

..... (3)

Divide

(2) / (1)









Divide

(3) / (1)











x = 1.279

x = 128 102 (Nearest integer)

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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.