The diffusion coefficient for Cr 3 in Cr 2 O 3 is 6x10 15 cm 2 s at 727C and 1x10 9 cm2 s at 1400C Calculate (a) the activation energy and (b) the constant D0

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Question: The diffusion coefficient for Cr 3+ in Cr 2 O 3 is 6x10 -15 cm 2 /s at 727C and 1x10 -9 cm2/s at 1400C.

The diffusion coefficient for Cr³⁺ in Cr₂O₃ is 6x10^-15cm² /s at 727C and 1x10^-9cm2/s at 1400C. Calculate (a) the activation energy; and (b) the constant D0.

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