Chemistry
Textbooks
Boundless Chemistry
Chemistry Textbooks Boundless Chemistry
Chemistry Textbooks
Chemistry

Chapter 18

Electrochemistry

Book Version 33
By Boundless
Boundless Chemistry
Chemistry
by Boundless
View the full table of contents
Section 1
Oxidation-Reduction Equations
Thumbnail
Balancing Redox Equations

Balancing redox reactions depends on conservation of mass and electrons; the exact method varies with basic or acidic solutions.

Section 2
Electrochemical Cells
Thumbnail
Voltaic Cells

A voltaic cell is a device that produces an electric current from energy released by a spontaneous redox reaction in two half-cells.

Thumbnail
Electrolytic Cells

Electrolysis uses electrical energy to induce a chemical reaction, which then takes place in an electrolytic cell.

Thumbnail
Electrochemical Cell Notation

Cell notation is shorthand that expresses a certain reaction in an electrochemical cell.

Section 3
Standard Reduction Potentials
Thumbnail
Standard Reduction Potentials

Standard reduction potentials provide a systematic measurement for different molecules' tendency to be reduced.

Thumbnail
Predicting Spontaneous Direction of a Redox Reaction

The direction of a redox reaction depends on the relative strengths of the oxidants and reductants in a solution.

Predicting if a Metal Will Dissolve in Acid

A metal is soluble in acid if it displaces H2 from solution, which is determined by the metal's standard reduction potential.

Thumbnail
Thermodynamics of Redox Reactions

The thermodynamics of redox reactions can be determined using their standard reduction potentials and the Nernst equation.

Section 4
Cell Potentials
Thumbnail
The Nernst Equation

In electrochemistry, the Nernst equation can be used to determine the reduction potential of an electrochemical cell.

Thumbnail
Concentration of Cells

Walther Nernst proposed a mathematical model to determine the effect of reactant concentration on the electrochemical cell potential.

Thumbnail
Free Energy and Cell Potential

In a galvanic cell, where a spontaneous redox reaction drives the cell to produce an electric potential, the change in Gibbs free energy must be negative.

Thumbnail
Equilibrium Constant and Cell Potential

The equilibrium constant K can be calculated using the Nernst equation.

Section 5
Batteries
Thumbnail
Dry Cell Battery

A dry-cell battery uses an immobilized electrolyte that minimizes moisture and allows for superior portability.

Thumbnail
Mercury Battery

Mercury batteries were a common electrochemical battery that were phased out of mainstream use in the U.S. by the 1996 Battery Act.

Thumbnail
Lead Storage Battery

Lead-acid batteries provide high currents and store charge for long periods of time, making them essential for vehicles.

Thumbnail
Other Rechargeable Batteries

The demand for many varieties of rechargeable batteries is due to their lower cost and lower environmental impact.

Thumbnail
The Lithium-Ion Battery

Lithium-ion batteries are rechargeable batteries commonly used in consumer electronics; they rely on Li+ migration.

Thumbnail
Fuel Cells

Fuel cells are a compelling alternative to batteries, but they are still in the early stages of development.

Section 6
Electrolysis
Thumbnail
Predicting the Products of Electrolysis

Electrolysis is a way of separating a compound by passing an electric current through it; the products are the compound's component ions.

Thumbnail
Electrolysis of Sodium Chloride

Two commonly used methods of electrolysis involve molten sodium chloride and aqueous sodium chloride, which give different products.

Thumbnail
Electrolysis of Water

Pure water cannot undergo significant electrolysis without an electrolyte, such as an acid or a base.

Electrolysis Stoichiometry

The amount of chemical change that occurs in electrolysis is stoichiometrically related to the amount of electrons that pass through the cell.

Section 7
Corrosion
Thumbnail
Corrosion

Corrosion occurs when metals deteriorate by chemical processes.

Thumbnail
Preventing Corrosion

Preventing corrosion reduces both the economic and safety-related damages associated with the process.

You are in this book
Boundless Chemistry by Boundless
Previous Chapter
Chapter 17
Thermodynamics
  • The Laws of Thermodynamics
  • Entropy
  • Gibbs Free Energy
Current Chapter
Chapter 18
Electrochemistry
  • Oxidation-Reduction Equations
  • Electrochemical Cells
  • Standard Reduction Potentials
  • Cell Potentials
  • Batteries
and 2 more sections...
Next Chapter
Chapter 19
Nuclear Chemistry
  • Radioactivity
  • Nuclear Reactions
  • Nuclear Transmutation
  • Nuclear Fission
  • Nuclear Fusion
and 2 more sections...
Subjects
  • Accounting
  • Algebra
  • Art History
  • Biology
  • Business
  • Calculus
  • Chemistry
  • Communications
  • Economics
  • Finance
  • Management
  • Marketing
  • Microbiology
  • Physics
  • Physiology
  • Political Science
  • Psychology
  • Sociology
  • Statistics
  • U.S. History
  • World History
  • Writing

Except where noted, content and user contributions on this site are licensed under CC BY-SA 4.0 with attribution required.