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Carbon is to be diffused into iron with an initial C concentration of 0.25 wt% at 763 °C. If the surface concentration is maintained at 1.5 wt% C, what will be the concentration (wt%) 0.9 mm from the surface after 13 hours? Given: Qd = 84 kJ/mol and Do = 6.2 x 10-7 m2/s. %3D

Carbon is to be diffused into iron with an initial C concentration of 0.25 wt% at 763 °C. If the surface concentration is maintained at 1.5 wt% C, what will be the concentration (wt%) 0.9 mm from the surface after 13 hours? Given: Qd = 84 kJ/mol and Do = 6.2 x 10-7 m2/s. %3D

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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Carbon is to be diffused into iron with an initial C concentration of 0.25 wt% at 763 °C. If the surface concentration is maintained at 1.5 wt% C, what will be the concentration (wt%) 0.9 mm from the surface after 13 hours? Given: Qd = 84 kJ/mol and Do = 6.2 x 10 m2/s.
Transcribed Image Text:Carbon is to be diffused into iron with an initial C concentration of 0.25 wt% at 763 °C. If the surface concentration is maintained at 1.5 wt% C, what will be the concentration (wt%) 0.9 mm from the surface after 13 hours? Given: Qd = 84 kJ/mol and Do = 6.2 x 10 m2/s.
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