JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 29 June 2022, Shift 1, Chemistry Q85

Question 85 of 90 in this shift, Chemistry question 25 of 30, Section B.

The activation energy of one of the reactions in a biochemical process is

532611\ \mathrm{J\ mol^{-1}}

. When the temperature falls from 310 K to 300 K, the change in rate constant observed is

k_{300} = x \times 10^{-3}\ k_{310}

. The value of

x

is ____________. [Given :

\ln 10 = 2.3

R = 8.3\ \mathrm{J\ K^{-1}\ mol^{-1}}

]

Official answer

NTA final key (2022 Session 1).

Chapter: Chemical Kinetics
Topic: Arrhenius Equation
Idea tested: Two-Point Arrhenius Equation

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Asked 5× 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 42 of the 174 JEE Main shifts held from 2017 to 2026.