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JEE Main & Advanced Physics Thermodynamical Processes Question Bank Self Evaluation Test - Thermodynamics

  • question_answer
    Starting with the same initial conditions, an ideal gas expands from volume \[{{V}_{1}}\] to \[{{V}_{2}}\] in three different ways. The work done by the gas is \[{{W}_{1}}\] if the process is purely isothermal, \[{{W}_{2}}\] if purely isobaric and \[{{W}_{3}}\] if purely adiabatic. Then

    A) \[{{W}_{2}}>{{W}_{1}}>{{W}_{3}}\]

    B) \[{{W}_{2}}>{{W}_{3}}>{{W}_{1}}\]

    C) \[{{W}_{1}}>{{W}_{2}}>{{W}_{3}}\]

    D) \[{{W}_{1}}>{{W}_{3}}>{{W}_{2}}\]

    Correct Answer: A

    Solution :

    [a] Work done is equal to area under the curve on PV diagram.


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