JEE Main 2022 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 28 July 2022, Shift 2, Physics Q24

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

At a certain temperature, the degrees of freedom per molecule for gas is 8. The gas performs 150 J of work when it expands under constant pressure. The amount of heat absorbed by the gas will be _____ J.

Official answer

750

NTA final key.

Chapter: Thermodynamics
Topic: First Law of Thermodynamics
Idea tested: Degrees of Freedom

Same topic in other shifts

All First Law of Thermodynamics questions

2 Apr 2026, Shift 1 · Q47A vessel contains $0.15\ \mathrm{m^3}$ of a gas at pressure $8$ bar and temperature $140\ ^\circ$ C with $c_p=3R$ and $c_v=2R$ . It is…MediumNumerical value
2 Apr 2026, Shift 2 · Q485 moles of unknown gas is heated at constant volume from 10°C to 20°C. The molar specific heat of this gas at constant pressure $c_p = 8$ …MediumNumerical value
5 Apr 2026, Shift 1 · Q33Consider the following statements: A. Zeroth law of thermodynamics gives concept of temperature B. First law of thermodynamics gives…MediumOther
6 Apr 2026, Shift 1 · Q50A certain gas is isothermally compressed to $\left(\frac{1}{3}\right)^{\mathrm{rd}}$ of its initial volume ( $V_0=3$ litre) by applying…MediumNumerical value
6 Apr 2026, Shift 2 · Q35If 2 mole of an ideal monoatomic gas at temperature $T$ , is mixed with 6 mole of another ideal monoatomic gas at temperature $2T$ then the…EasySingle correct
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

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.