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Discussion :: Chemical Engineering Thermodynamics

  1. There is a change in __________ during the phase transition.

    2. A.

     Volume
    B.

     Pressure
    C.

     Temperature
    D.

     All of the above

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    Answer : Option A

    Explanation :

    The phase change occurs at constant temperature and pressure under normal situations. But the volume changes because between two phases always there is a change in intermolecular forces except at critical condition.
    Eg: when liquid is converting to vapor the vapor formed will have more volume than liquid.

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