JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 8 April 2024, Shift 2, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

A diatomic gas (

\gamma=1.4

) does 100 J of work in an isobaric expansion. The heat given to the gas is :

(1)250 J
(2)350 JOfficial answer
(3)150 J
(4)490 J

Official answer

Option 2

NTA final key.

Chapter: Thermodynamics
Topic: First Law of Thermodynamics
Idea tested: Fraction of Heat Converted to Work (Isobaric)

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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.