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The diffusion coefficient for Cr3+ in Cr2O3 is 7.611014cm2/s at 820C and 1.01108cm2/s at 1,650C. Calculate the following. (a) the activation energy (Round your answer

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The diffusion coefficient for Cr3+ in Cr2O3 is 7.611014cm2/s at 820C and 1.01108cm2/s at 1,650C. Calculate the following. (a) the activation energy (Round your answer to at least the nearest hundred cal/mol.) cal/mol (b) the constant D0( in cm2/s) cm2/s

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