Solved Problems in Electrochemistry

ISBN9782553011368 EditeurPresses internationales Polytechnique pages220 Parution2004-01-29
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The objective of this book is to develop the reader's ability to solve problems in electrochemistry. Professors and students, as well as industrial users, will benefit from these problems, which illustrate fundamental phenomena using data from industrial plants or research laboratories. Solved Problems in Electrochemistry offers an interesting bridge between science and useful applications.

Each chapter consists of three sections: (1) a clear and simple presentation of useful concepts, (2) the presentation and solution of some twenty problems, and (3) a set of unsolved problems proposed as exercises. The first five chapters use basic concepts in practical situations, and the last three chapters present more complex problems in electrolysis, corrosion rates and prevention, and electrochemical cells and batteries.

Professor D. L. Piron, a PhD and Fullbright Scholar at UCLA, was the Electrochemistry Chair holder at the Ecole Polytechnique of Montreal, where he taught electrochemistry for 25 years. He began his career in industrial research, and is now known worldwide for the publication of over 100 reviewed articles and books, as well as for numerous international professional awards and honors.


This book was written for two groups: (1) professors and students in chemistry, materials, metallurgy and chemical engineering, and (2) practicing engineers and technicians working in corrosion, electrolysis, plating, electrochemical cells and rechargeable batteries.

This book fills the need for a modern approach to problem solving and calculations in electrochemistry. It provides a useful text that is not currently available. The examples of solutions of specific cases presented here benefit students and professors and also represent a useful tool for scientists, engineers and technicians working in electrochemistry. This approach develops the aptitude for obtaining numerical values as answers to specific questions, which is an essential requirement for the design and control of industrial processes and for laboratory experiments.

This book presents calculated solutions to problems in fundamental and applied electrochemistry. It uses industrial data to illustrate scientific concepts and scientific knowledge to solve practical problems. It is subdivided into three parts. The first
uses modern basic concepts, the second studies the scientific basis for electrode and electrolyte thermodynamics (including E-pH diagrams and the minimum energy involved in transformations) and the kinetics of rate processes (including the energy lost in heat and in parasite reactions). The third part treats larger problems in electrolysis and power generation, as well as in corrosion and its prevention. Each chapter includes three sections: (1) the presentation of useful principles, (2) some twenty problems with their solutions, and (3) a set of unsolved problems.

Chapter 1 - Use of Electrode Concepts
Electrochemical reactions. The use of the electric analogue for the electrode. Computation of cell voltage and reversible energy.

Chapter 2 - Faraday's Law
Faraday's use of reactions at the electrode to obtain the quantity of the deposit, gas evolution, current efficiency and specific energy.


Chapter 3 - Electrode Thermodynamics and E-pH Diagrams
Conditions of electrode stability. Equilibrium and reversible processes. Calculation and interpretation of E-lg | i | diagrams.

Chapter 4 - Electrolyte Solutions
Interaction between charged particles. Ionic strength. Calculation of activity coefficients. Conductivity and calculation of IR drop.

Chapter 5 - Electrode Kinetics (Processes)
Determination and use of electrode overpotentials and polarization. Energy consumption and heat produced. Secondary reactions. E - lg | i | diagrams and their uses. Limiting current.


Chapter 6 - Electrolysis Production Problems
Several industrial electrolysis processes offer useful examples of calculations for production: energy consumption in transformations, parasite reactions and heat liberation, energy balance in electrolytic cells. Metal, chemical and gas production. Aqueous and molten salt processes.

Chapter 7 - Corrosion Failure and Prevention Problems
Corrosion rates and the life expectancy of structures are calculated. Problems in corrosion prevention (cathodic and anodic protection, coatings and inhibitors) are resolved through computations.

Chapter 8 - Electrochemical Power Generators
Primary and secondary cells, operation voltages, and power as a function of current drawn. Energy available and lost, energy efficiency, rechargeable battery cycles, and fuel cells.

Appendix I - List of Symbols and Abbreviations
Appendix II - Standard Electromotive Potential
Appendix III - Atomic Weights
Appendix IV - Table of Fundamental Constants
Appendix V - Conversion Table
Appendix VI - Simplified Logarithm Table