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Cyclic Processes for JEE: 18 solved questions

Real JEE paper questions on cyclic processes, part of thermodynamics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2009 to 2026. No sign-in needed to read them.

What this topic asks

• Work as the Area of a Closed Loop — 11 questions
• Cycles with an Adiabatic Leg — 4 questions
• Energy Balance round a Cycle — 3 questions

All 18 questions with solutions

• In the following P-V diagram the equation of state along the curved path is (V-2)²=4aP, where a is a constant… JEE Main 28th Jan 1st Shift 2026
• Using the given P-V diagram, the work done by an ideal gas along the path ABCD is JEE Main 23rd Jan 2nd Shift 2025
• The magnitude of the heat exchanged by a system in the given cyclic process ABCA, shown in the figure, is (in… JEE Main 24th Jan 2nd Shift 2025
• A polyatomic molecule, for which C_V=3R and Cₚ=4R where R is the gas constant, goes from the phase-space poin… JEE Main 29th Jan 2nd Shift 2025
• The heat absorbed by a system in going through the given cyclic process is JEE Main 5th April 1st Shift 2024
• A real gas within a closed chamber at 27°C undergoes the cyclic process shown in the figure. The gas obeys PV… JEE Main 9th April 2nd Shift 2024
• A thermodynamic system is taken through the cyclic process shown in the figure. The total work done in the pr… JEE Main 15th April 1st Shift 2023
• A thermodynamic system is taken from an original state D to an intermediate state E by the linear process sho… JEE Main 29th July 2nd Shift 2022
• A sample of an ideal gas is taken through the cyclic process ABCA shown in the figure. It absorbs 40 J of hea… JEE Main 28th June 2nd Shift 2022
• In the figure there is a cyclic process ABCDA on a sample of 1 mole of a diatomic gas. The temperatures of th… JEE Main 27th July 1st Shift 2021
• One mole of an ideal gas at (P₁,V₁) is allowed to expand reversibly and isothermally from A to B, so that its… JEE Main 24th Feb 2nd Shift 2021
• A sample of an ideal gas is taken through the cyclic process abca shown in the figure. The change in the inte… JEE Main 12th April 1st Shift 2019
• For the given cyclic process CAB shown for a gas, the work done is JEE Main 12th Jan 1st Shift 2019
• One mole of a diatomic ideal gas undergoes the cyclic process ABC shown in the figure. The process BC is adia… JEE Main 2014
• Two moles of helium gas are taken over the cycle ABCDA shown in the P-T diagram. The net work done on the gas… JEE Main 2009
• A thermodynamic system is taken through the cyclic process ABC shown in the figure. The total work done by th… JEE Main 28th Jan 2nd Shift 2026
• An ideal gas has undergone the cyclic process shown in the figure. The work done by the gas in the entire cyc… JEE Main 7th April 1st Shift 2025
• In the figure, the heat energy absorbed by a system in going through a cyclic process is π J. JEE Main 20th July 1st Shift 2021