A diffusion couple of two metals, A and B, was fashioned as shown: X= A mm Diffusion of A atoms A-B alloy Diffusion of Batons After a 27-hour heat treatment at 1010°C (and subsequent cooling to room temperature), the concentration of A is 3.6 wt% at the 12.2-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 850°C for 27 hours, at what position will the composition be 3.6 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 4.0 x 105 m2/s and 151 kJ/mol, respectively. B

A diffusion couple of two metals, A and B, was fashioned as shown: X= A mm Diffusion of A atoms A-B alloy Diffusion of Batons After a 27-hour heat treatment at 1010°C (and subsequent cooling to room temperature), the concentration of A is 3.6 wt% at the 12.2-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 850°C for 27 hours, at what position will the composition be 3.6 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 4.0 x 105 m2/s and 151 kJ/mol, respectively. B

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter2: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 81AP: One process for decaffeinating coffee uses carbon dioxide ( M=44.0 g/mol) at a molar density of...

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