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The diffusion coefficients for copper in aluminum at 500°C and 600°C are 4.8 x 10-14 and 5.3 x 10-13 m2/s, respectively. Determine the approximate time at 500°C that will produce the same diffusion result (in terms of concentration of Cu at some specific point in Al) as a 10-h heat treatment at 600°C.

The diffusion coefficients for copper in aluminum at 500°C and 600°C are 4.8 x 10-14 and 5.3 x 10-13 m2/s, respectively. Determine the approximate time at 500°C that will produce the same diffusion result (in terms of concentration of Cu at some specific point in Al) as a 10-h heat treatment at 600°C.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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EXAMPLE PROBLEM 5.3 Nonsteady-State Diffusion Time Computation il The diffusion coefficients for copper in aluminum at 500°C and 600°C are 4.8 x 10 14 and 5.3 x 10-13 m2/s, respectively. Determine the approximate time at 500°C that will produce the same diffusion result (in terms of concentration of Cu at some specific point in Al) as a 10-h heat treatment at 600°C.
Transcribed Image Text:EXAMPLE PROBLEM 5.3 Nonsteady-State Diffusion Time Computation il The diffusion coefficients for copper in aluminum at 500°C and 600°C are 4.8 x 10 14 and 5.3 x 10-13 m2/s, respectively. Determine the approximate time at 500°C that will produce the same diffusion result (in terms of concentration of Cu at some specific point in Al) as a 10-h heat treatment at 600°C.
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