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A steel sheet is exposed to a nitrogen rich atmosphere at 900°C and achieves steady-state diffusion. The diffusion coefficient for nitrogen at this temperature is 1.85 x 10-10 m2 kg and the diffusion flux is 1.0 x 10-7 If the initial concentration of sec m2.sec kg nitrogen in the steel at the high-pressure surface is 2 at what distance into the sheet m3> will the concentration of nitrogen be 0.5 ? kg m3

A steel sheet is exposed to a nitrogen rich atmosphere at 900°C and achieves steady-state diffusion. The diffusion coefficient for nitrogen at this temperature is 1.85 x 10-10 m2 kg and the diffusion flux is 1.0 x 10-7 If the initial concentration of sec m2.sec kg nitrogen in the steel at the high-pressure surface is 2 at what distance into the sheet m3> will the concentration of nitrogen be 0.5 ? kg m3

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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A steel sheet is exposed to a nitrogen rich atmosphere at 900°C and achieves steady-state diffusion. The diffusion coefficient for nitrogen at this temperature is 1.85 x 10-10 m2 kg and the diffusion flux is 1.0 x 10-7 If the initial concentration of sec m².sec kg nitrogen in the steel at the high-pressure surface is 2 at what distance into the sheet m39 will the concentration of nitrogen be 0.5 *9? m3 4 360 words D Focus 255% e Type here to search IA 5:02 PM W 2/24/2022 10 165HZ V WQHD |. ROG ZEPHYRUS 100% DCI-P3 PANTONE Validated F5 F9 F10 ESC AURA DELETE %24 & %3D P www ENT G K
Transcribed Image Text:A steel sheet is exposed to a nitrogen rich atmosphere at 900°C and achieves steady-state diffusion. The diffusion coefficient for nitrogen at this temperature is 1.85 x 10-10 m2 kg and the diffusion flux is 1.0 x 10-7 If the initial concentration of sec m².sec kg nitrogen in the steel at the high-pressure surface is 2 at what distance into the sheet m39 will the concentration of nitrogen be 0.5 *9? m3 4 360 words D Focus 255% e Type here to search IA 5:02 PM W 2/24/2022 10 165HZ V WQHD |. ROG ZEPHYRUS 100% DCI-P3 PANTONE Validated F5 F9 F10 ESC AURA DELETE %24 & %3D P www ENT G K
Expert Solution
Step 1

Given that T =900 Csteady staet diffusion DAB =1.85 x 10-10  m2sNA =10-7 kgm2sCA1  =2 Kgm3CA2  =0.5  Kgm3Z =?

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