control. Using the data provided, estimate the diffusion coefficient of the ferricyanide.

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
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4.7 A potential step experiment is conducted on a solution of 0.5
M K3FE(CN)6, and 0.5 M Na2CO3 . The potential is large
enough so that the reduction of ferricyanide is under diffusion
control. Using the data provided, estimate the diffusion
coefficient of the ferricyanide.
Current
density, A m2
731
Time, s
1
1.7
564
2.8
438
4.6
340
7.7
263
[Fe(CN) +e
¯ →[Fe(CN) ,
(U®=0.3704 V)
12.9
201
21.5
156
35.9
122
59.9
94
100
72
Transcribed Image Text:4.7 A potential step experiment is conducted on a solution of 0.5 M K3FE(CN)6, and 0.5 M Na2CO3 . The potential is large enough so that the reduction of ferricyanide is under diffusion control. Using the data provided, estimate the diffusion coefficient of the ferricyanide. Current density, A m2 731 Time, s 1 1.7 564 2.8 438 4.6 340 7.7 263 [Fe(CN) +e ¯ →[Fe(CN) , (U®=0.3704 V) 12.9 201 21.5 156 35.9 122 59.9 94 100 72
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