JEE Main 2023ChemistryThermodynamics (C)EasyNumerical

JEE Main 2023Thermodynamics (C) Question with Solution

JEE Main 2023 (30 Jan Shift 1)

Question

When 2 litre of ideal gas expands isothermally into vacuum to a total volume of 6 litre, the change in internal energy is _____ J. (Nearest integer)

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Correct answer
0

Step-by-step explanation

For ideal gas U=fT and for isothermal process, ΔU=0,
Also Pext = 0, thus work done in vacuum is also zero. Internal energy is a fuction of temperature.

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This is a previous-year question from JEE Main 2023, covering the Thermodynamics (C) chapter of Chemistry. 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.