The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 x 10 -16 m 2 – McqOptions

MCQOPTIONS

1.	The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 x 10 -16 m 2 . S -1 and it is 1.94 x 10 -14 m 2 S -1 at 1200 K. The activation energy (in k. J.mole -1 ) for the diffusion of Ni in Cu is
A.	130
B.	180
C.	230
D.	250
Answer» D. 250

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