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Specific Heats and the Ratio Gamma for JEE: 17 solved questions

Real JEE paper questions on specific heats and the ratio gamma, part of kinetic theory of gases. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2007 to 2026. No sign-in needed to read them.

What this topic asks

• Ratio of specific heats — 10 questions
• Cv, Cp and Mayer's relation — 7 questions

All 17 questions with solutions

• For an adiabatic expansion of an ideal gas, the fractional change in its pressure is equal to (where γ is the… JEE Main 18th March 2nd Shift 2021
• Given below are two statements. Statement I: Change in internal energy of a system containing n mole of ideal… JEE Main 5th April 1st Shift 2026
• Match List-I with List-II. List-I: (A) Triatomic rigid gas; (B) Diatomic non-rigid gas; (C) Monoatomic gas; (… JEE Main 7th April 1st Shift 2025
• The specific heat at constant pressure of a real gas obeying PV² = RT equation is JEE Main 6th April 1st Shift 2024
• A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) is kept at room temperature (2… JEE Main 8th April 1st Shift 2024
• Let γ₁ be the ratio of molar specific heat at constant pressure to molar specific heat at constant volume of… JEE Main 24th Jan 2nd Shift 2023
• The correct relation between γ=C_P/C_V and temperature T is JEE Main 31st Jan 1st Shift 2023
• A gas has n degrees of freedom. The ratio of specific heat of gas at constant volume to the specific heat of… JEE Main 26th July 2nd Shift 2022
• The ratio of specific heats (C_P/C_V) in terms of degree of freedom (f) is given by JEE Main 25th June 2nd Shift 2022
• The correct relation between the degrees of freedom f and the ratio of specific heat γ is JEE Main 20th July 2nd Shift 2021
• For a gas C_P-C_V = R in a state P and C_P-C_V = 1.10 R in a state Q. T_P and T_Q are the temperatures in two… JEE Main 22nd July 1st Shift 2021
• To raise the temperature of a certain mass of gas by 50°C at constant pressure, 160 calories of heat is requi… JEE Main 3rd Sept 2nd Shift 2020
• Match the C_P/C_V ratio for ideal gases with different types of molecules. Molecule type: (A) Monatomic; (B)… JEE Main 4th Sept 2020
• C_P and C_V are specific heats at constant pressure and constant volume respectively. It is observed that C_P… JEE Main 2017
• An ideal gas has molecules with 5 degrees of freedom. The ratio of specific heats at constant pressure (C_P)… JEE Main Online 2017
• Using equipartition of energy, the specific heat (in J kg⁻¹ K⁻¹) of aluminium at room temperature can be esti… JEE Main Online 2015
• If C_P and C_V denote the specific heats of nitrogen per unit mass at constant pressure and constant volume r… AIEEE 2007