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Railways NTPC (Technical Ability) Materials Science Question Bank Materials Science

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          Gibb's phase rule is given by (F = number of degrees of freedom, C = number of components, P = number of phases):

    A) \[F=C+P\]                    

    B) \[F=C+P\,-\,2\]

    C) \[F=C\,-\,P\,-\,2\]                       

    D) \[F=C\,-\,P+2\]

    Correct Answer: D

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