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JEE Main 27 June 2022, Shift 2, Physics Q53

Question 53 of 90 in this shift, Physics question 23 of 30, Section B.

A diatomic gas (

\gamma

= 1.4) does 400J of work when it is expanded isobarically. The heat given to the gas in the process is __________ J.

Official answer

1400

NTA final key.

Chapter: Thermodynamics
Topic: First Law of Thermodynamics
Idea tested: Heat in Isochoric and Isobaric Processes

Same idea in other shifts

Asked 5× in all

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1 Feb 2024, Shift 2 · Q38A diatomic gas ( $\gamma = 1.4$ ) does 200 J of work when it is expanded isobarically. The heat given to the gas in the process is :EasySingle correct
29 Jun 2022, Shift 1 · Q35A cylinder of fixed capacity of 44.8 litres contains helium gas at standard temperature and pressure. The amount of heat needed to raise…EasySingle correct
25 Feb 2021, Shift 1 · Q18A diatomic gas, having $C_P=\frac{7}{2}R$ and $C_V=\frac{5}{2}R$ , is heated at constant pressure. The ratio dU : dQ : dW :EasySingle correct

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.