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

The diffusion coefficient for O in Cr2O3 is 6x10-15 cm2/s at 727C, and 1x10-9 cm2/s at 1400C.

Calculate:

Activation energy in cal/mol

The constant D0 in cm2/s

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