JEE Main 2026 — Thermodynamics Question with Solution
JEE Main 2026 (28 January Shift 2)
Question
A thermodynamic system is taken through the cyclic process as shown in the figure. The total work done by the system during the cycle is J.
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Show full solutionCorrect answer: 300
Correct answer
300
Step-by-step explanation
From the P-V diagram: A(2,100), B(5,300), C(5,100) in Pa and m³ units.
Process A→B is linear. Equation:
J
Process B→C is isobaric: J
Process C→A is isobaric: J
Total work done by system: J
Process A→B is linear. Equation:
J
Process B→C is isobaric: J
Process C→A is isobaric: J
Total work done by system: J
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This is a previous-year question from JEE Main 2026, covering the Thermodynamics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.