NEET  >  MCQ: Expansion of Gas, Thermodynamics

# MCQ: Expansion of Gas, Thermodynamics Notes - NEET

## Document Description: MCQ: Expansion of Gas, Thermodynamics for NEET 2022 is part of NEET preparation. The notes and questions for MCQ: Expansion of Gas, Thermodynamics have been prepared according to the NEET exam syllabus. Information about MCQ: Expansion of Gas, Thermodynamics covers topics like and MCQ: Expansion of Gas, Thermodynamics Example, for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for MCQ: Expansion of Gas, Thermodynamics.

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# Ques: A sample of gas expands from volume V1 to V2.The amount of work done by the gas is greatest when the expansion is (a) adiabatic (b) isobaric (c) isothermal (d) equal in all above cases.

Solution: The amount of work done by the gas is greatest when the expansion is b) Isobaric

The P−V diagram for isobaric, isothermal and adiabatic process of an ideal gas is shown in graph below :

In thermodynamics, for same change in volume, the work done is maximum for the curve having maximum area enclosed with the volume axis. Area enclosed by the curve

∝ (Slope of curve)

As shown:

Hence, work done is maximum in isobaric process.

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