control. Using the data provided, estimate the diffusion coefficient of the ferricyanide.
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
Section: Chapter Questions
Problem 1.1P
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Question

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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