The preexponential and activation energy for the diffusion of iron in cobalt are 1.1 x 10-5 m?/s and 253,300 J/mol, respectively. At what temperature will the diffusion coefficient have a value of 2.1 x 10-14 m/s? The activation energy for the diffusion of car- bon in chromium is 111,000 J/mol. Calculate the diffusion coefficient at 1100 K (827°C), given that D at 1400 K (1127°C) is 6.25 x 10-11 m/s.
The preexponential and activation energy for the diffusion of iron in cobalt are 1.1 x 10-5 m?/s and 253,300 J/mol, respectively. At what temperature will the diffusion coefficient have a value of 2.1 x 10-14 m/s? The activation energy for the diffusion of car- bon in chromium is 111,000 J/mol. Calculate the diffusion coefficient at 1100 K (827°C), given that D at 1400 K (1127°C) is 6.25 x 10-11 m/s.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.73PAE
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