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Discussion :: GATE Chemical

  1. Consider a binary liquid mixture at constant temperature T and pressure P . If the enthalpy change of mixing, ∆H = 5x1x2, where x1 and x2 are the mole fraction of species 1 and 2 respectively, and the entropy change of mixing ∆S = -R[x1 ln x1 + x2 ln x2] (with R = 8.314 J/mol.K), then the minimum value of the Gibbs free energy change of mixing at 300 K occurs when
    2. A.
    x1 = 0
    B.
    x1 = 0.2
    C.
    x1 = 0.4
    D.
    x1 = 0.5

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    Workspace

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    Answer : Option D

    Explanation :

    -NA-

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