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In FE in FCC Fe: At 500C the Diffusion coefficient is 3.0x10-21 Activation Energy (Qd) is 251 kJ/mol. What is the Diffusion coefficient at 900C?

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In FE in FCC Fe: At 500C the Diffusion coefficient is 3.0x10-21 Activation Energy (Qd) is 251 kJ/mol. What is the Diffusion coefficient at 900C? a. 1.1 x 10-17 m2/5 O b. 1.7x10-10 m2/5 OC. 1.8x10-15 m2/s O d. 5.9x10-12 m2/s

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