The dif- 3. (a) Compare interstitial and vacancy atomic mechanisms for diffusion. fusion coefficients (D) for Fe in Ni are considered to be 9.4 x 10-16 m²/s and 2.4 × 10- 14 m²/s, at 1273 K and 1473 K, respectively. (b) Determine the values of Do and the acti- vation energy Qd. (c) What is the magnitude of D at 1100°C (1373 K)? (R 8.31 J/mol K, Do: temperature independent preexponential (m²/s), Qa: activation energy for diffusion)

The dif- 3. (a) Compare interstitial and vacancy atomic mechanisms for diffusion. fusion coefficients (D) for Fe in Ni are considered to be 9.4 x 10-16 m²/s and 2.4 × 10- 14 m²/s, at 1273 K and 1473 K, respectively. (b) Determine the values of Do and the acti- vation energy Qd. (c) What is the magnitude of D at 1100°C (1373 K)? (R 8.31 J/mol K, Do: temperature independent preexponential (m²/s), Qa: activation energy for diffusion)

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter8: Properties Of Gases

Section8.7: Kinetic-molecular Theory And The Velocities Of Gas Molecules

Problem 8.17E

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