JEE Main 2022 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 27 June 2022, Shift 2, Chemistry Q84

Question 84 of 90 in this shift, Chemistry question 24 of 30, Section B.

When 5 moles of He gas expand isothermally and reversibly at 300 K from 10 litre to 20 litre, the magnitude of the maximum work obtained is ________J. [nearest integer](Given : R = 8.3 J

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

and log 2 = 0.3010)

Official answer

8630

NTA final key.

Chapter: Thermodynamics (Chemistry)
Topic: First Law of Thermodynamics
Idea tested: Work and Heat in Isothermal Processes

Same idea in other shifts

Asked 4× 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.