Nitrogen from a gaseous phase is to be diffused into pure iron at 700 degrees C. If the surface concentration is maintained at 0.27 wt% N, what will be the concentration (in weight percent) 3.0 mm from the surface after 7.1 h? The diffusion coefficient for nitrogen in iron at 700 degrees C is 2.3*10^-10 m^2/s.
Nitrogen from a gaseous phase is to be diffused into pure iron at 700 degrees C. If the surface concentration is maintained at 0.27 wt% N, what will be the concentration (in weight percent) 3.0 mm from the surface after 7.1 h? The diffusion coefficient for nitrogen in iron at 700 degrees C is 2.3*10^-10 m^2/s.
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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Nitrogen from a gaseous phase is to be diffused into pure iron at 700 degrees C. If the surface concentration is maintained at 0.27 wt% N, what will be the concentration (in weight percent) 3.0 mm from the surface after 7.1 h? The diffusion coefficient for nitrogen in iron at 700 degrees C is 2.3*10^-10 m^2/s.
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