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The diffusion coefficients for iron in nickel are 9.41016m2/s at 1000C and 2.41014m2/s at 1200C. (a) Determine the values of D0 and the activation energy

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The diffusion coefficients for iron in nickel are 9.41016m2/s at 1000C and 2.41014m2/s at 1200C. (a) Determine the values of D0 and the activation energy Qd. (b) What is the magnitude of D at 1100C

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