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Discussion :: Chemical Engineering Thermodynamics

  1. When a system is in equilibrium for all possible processes, the differential or finite change of entropy is

    2. A.

     < 0
    B.

     > 0
    C.

     = 0
    D.

     None of these

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    Answer : Option A

    Explanation :

    For a spontaneous process of a system the change in entropy should be always greater than zero and for an equilibrium (more or less reversible) process the entropy must be equal to zero.

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