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  1. The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria is/are

    2. A.

     Zero
    B.

     One
    C.

     Two
    D.

     Three

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    Answer : Option B

    Explanation :

    Degree of freedom = Cāˆ’āˆ…+2
    For azeotropic binary mixture since number of components(c)=2
    Number of phases(āˆ…)=2
    Degree of freedom =2
    But for azeotropic mixture since vapor composition = liquid composition
    Degree of freedom becomes =1

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