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Discussion :: Chemical Engineering Thermodynamics

  1. Enthalpy changes over a constant pressure path are always zero for __________ gas.

  2. A.

     Any

    B.

     A perfect

    C.

     An easily liquefiable

    D.

     A real

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    Answer : Option B

    Explanation :

    Since a perfect gas can also be considered as an ideal gas and for ideal gas hence at constant pressure the temperature remains constant and for ideal gas since enthalpy is solely a function of temperature we can say enthalpy is zero.


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