Consider one such alloy that initially has a uniform carbon concentration of 1. 22 wt% and is be treated at 950 °C. If the concentration of carbon at the surface is suddenly brought to ar maintained at 2.23 wt%, what would be carbon concentration at a position 1.5 mm below th surface, if the time required for the diffusion process is 24.5 h? The diffusion coefficient for carbo in iron at this temperature is 1.8 ×10" m²/s; assume that the steel piece is semi-infinite. Tabulation of error function values erf (z) erf (z) erf (z) 0.55 0.5633 1.3 0.9340 0.025 0.0282 0.6 0.6039 1.4 0.9523 0.05 0.0564 0.65 0.6420 1.5 0.9661 0.10 0.1125 0.1680 0.7 0.6778 1.6 0.9763 0.9838 0.15 0.75 0.7112 1.7 0.9891 0.9928 0.2 0.2227 0.8 0.7421 1.8 0.25 0.2763 0.85 0.7707 1.9 0.3 0.3286 0.9 0.7970 2.0 0.9953 0.35 0.3794 0.95 0.8209 2.2 0.9981 0.4 0.4284 1.0 0.8427 2.4 0.9993 0.45 0.4755 1.1 0.8802 2.6 0.9998 0.5 0.5205 1.2 0.9103 2.8 0.9999
Consider one such alloy that initially has a uniform carbon concentration of 1. 22 wt% and is be treated at 950 °C. If the concentration of carbon at the surface is suddenly brought to ar maintained at 2.23 wt%, what would be carbon concentration at a position 1.5 mm below th surface, if the time required for the diffusion process is 24.5 h? The diffusion coefficient for carbo in iron at this temperature is 1.8 ×10" m²/s; assume that the steel piece is semi-infinite. Tabulation of error function values erf (z) erf (z) erf (z) 0.55 0.5633 1.3 0.9340 0.025 0.0282 0.6 0.6039 1.4 0.9523 0.05 0.0564 0.65 0.6420 1.5 0.9661 0.10 0.1125 0.1680 0.7 0.6778 1.6 0.9763 0.9838 0.15 0.75 0.7112 1.7 0.9891 0.9928 0.2 0.2227 0.8 0.7421 1.8 0.25 0.2763 0.85 0.7707 1.9 0.3 0.3286 0.9 0.7970 2.0 0.9953 0.35 0.3794 0.95 0.8209 2.2 0.9981 0.4 0.4284 1.0 0.8427 2.4 0.9993 0.45 0.4755 1.1 0.8802 2.6 0.9998 0.5 0.5205 1.2 0.9103 2.8 0.9999
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
Related questions
Question
Answer in detail Correctly.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The