Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.1PAE: Identify the first chemical step in the production of Portland cement. How is this reaction related...
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A sheet of steel with an initial nitrogen concentration of 0.066% is exposed to an atmosphere containing 0.2% nitrogen. After 6 hours, the concentration of nitrogen 5 mm into the surface of the steel sheet is 0.090%. At what temperature is this process taking place? Assume that D0 = 4.7 x 10-7 m2/s, QD = 76.6 kJ/mol. Refer to the erf table.
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