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Discussion :: Chemical Engineering Thermodynamics

  1. Enthalpy of a gas depends upon its

  2. A.

     Temperature

    B.

     Mass

    C.

     Volume

    D.

     Pressure

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    Answer : Option A

    Explanation :

    Because the enthalpy of an real gas is given by
    dH=CpdT+[V−T(∂V∂T)p]dp
    For ideal gas since (∂V∂T)p=RP⇒dH=cpdT
    Hence only for an ideal gas enthalpy is a function of temperature.


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