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  1. The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 x 10-16 m2 . S-1 and it is 1.94 x 10-14 m2 S-1 at 1200 K. The activation energy (in k. J.mole-1 ) for the diffusion of Ni in Cu is

    2. A.
    130
    B.
    180
    C.
    230
    D.
    250

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    Answer : Option C

    Explanation :

    No answer description available for this question.

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