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.2AE
Interpretation Introduction

Interpretation:

The exchange current density has to be calculated.

Concept Introduction:

When the over potential is large and positive (η0.12V), the anodic process is dominant. The current density is given by

  J=J0e(1-α)

When the over potential is large and negative (η0.12V), the cathodic process is dominant. The current density is given by

  J=J0eα

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