JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 29 June 2022, Shift 1, Physics Q35

Question 35 of 90 in this shift, Physics question 5 of 30, Section A.

A cylinder of fixed capacity of 44.8 litres contains helium gas at standard temperature and pressure. The amount of heat needed to raise the temperature of gas in the cylinder by

20.0^\circ\mathrm{C}

will be : (Given gas constant

R = 8.3\ \mathrm{JK^{-1}\text{-}mol^{-1}}

)

(1)249 J
(2)415 J
(3)498 JOfficial answer
(4)830 J

Official answer

Option 3

NTA final key (2022 Session 1).

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

Same idea in other shifts

Asked 5× in all

8 Apr 2026, Shift 2 · Q35One mole of diatomic gas having rotational modes only is kept in a cylinder with a piston system. The cross-section area of the cylinder…MediumSingle correct
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
27 Jun 2022, Shift 2 · Q53A diatomic gas ( $\gamma$ = 1.4) does 400J of work when it is expanded isobarically. The heat given to the gas in the process is __________…EasyNumerical value
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.