The temperature dependence of the diffusion coefficient D (cm2/s) is given by an Arrhenius type equation:
whereD0(cm2/s) is pre-exponential constant, Ea(J/mol) is activation energy for diffusion, R = 8.31 (J/mol-K) is the gas consent, and T is temperature in Kelvin. For diffusion of carbon into stainless steel D0= 6.18 cm2/s, and Ea= 187 KJ/mol. Make two plots of D versus Tfor
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