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Discussion :: Chemical Engineering Thermodynamics

  1. The expression, nRT In P₁/P₂ , is for the____of an ideal gas.

    2. A.

     Compressibility
    B.

     Work done under adiabatic contition
    C.

     Work done under isothermal condition
    D.

     Co-efficient of thermal expansion

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    Workspace

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    Answer : Option C

    Explanation :

    Since, the expansion work is equal to δw=PdV
    Since for an ideal gas
    PV=nRT⇒w=∫nRTVdV⇒w=nRTln(P1P2)
    (hence for an ideal gas under isothermal conditions)

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