Atkins' Physical Chemistry
Atkins' Physical Chemistry
11th Edition
ISBN: 9780198769866
Author: ATKINS, P. W. (peter William), De Paula, Julio, Keeler, JAMES
Publisher: Oxford University Press
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Chapter 19, Problem 19D.5P
Interpretation Introduction

Interpretation:

From the given data, the exchange-current density and transfer coefficient have to be calculated.

Concept Introduction:

Tafel plots:

When the overpotential is large and positive, the anodic process is dominant.  The current density is given by

    j=j0e(1-α)hencelnj=lnj0+(1-α)fη

A plot of the logarithm of the current density against the overpotential is called a Tafel plot.

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