Section 4
Cell Potentials
Book
Version 33
By Boundless
By Boundless
Boundless Chemistry
Chemistry
by Boundless
4 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/13195/square/electrochemcell.jpg)
The Nernst Equation
In electrochemistry, the Nernst equation can be used to determine the reduction potential of an electrochemical cell.
![Thumbnail](../../../../../../figures.boundless-cdn.com/13250/square/walther-nernst-2.jpeg)
Concentration of Cells
Walther Nernst proposed a mathematical model to determine the effect of reactant concentration on the electrochemical cell potential.
![Thumbnail](../../../../../../figures.boundless-cdn.com/31259/square/electrochemcell.jpg)
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](../../../../../../figures.boundless-cdn.com/13210/square/c-cell-with-no-cation-flow.jpg)
Equilibrium Constant and Cell Potential
The equilibrium constant K can be calculated using the Nernst equation.