Half-Reaction

Definition

In electrochemistry, half-reactions represent either oxidation or reduction processes occurring at separate electrodes in an electrochemical cell. They are written as balanced equations showing electron transfer.

Related terms

Standard Reduction Potential:

The potential of a half-reaction under standard conditions compared to the hydrogen electrode.

Nernst Equation:

An equation that relates the reduction potential of an electrochemical reaction to its concentrations and temperature.

Faraday's Law:

A law stating that the amount of substance involved in an electrolysis reaction is directly proportional to the quantity of electricity passed through it.