JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 26 June 2022, Shift 2, Chemistry Q86

Question 86 of 90 in this shift, Chemistry question 26 of 30, Section B.

40% of HI undergoes decompostion to

\mathrm{H_2}

and

\mathrm{I_2}

at 300 K.

\Delta G^\ominus

for this decompostion reaction at one atmopsphere pressure is ____ J

\mathrm{mol^{-1}}

.[nearest integer] (Use R = 8.31 J

\mathrm{K^{-1}\,mol^{-1}}

; log 2 = 0.3010, ln 10 =2.3, log 3 = 0.477)

Official answer

2735

NTA final key.

Chapter: Equilibrium
Topic: Gibbs Free Energy
Idea tested: Gibbs Energy and Equil

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Asked 10× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.