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Original text

Electrode potential, E, in electrochemistry, according to an IUPAC definition, is the electromotive force of a cell built of two electrodes:

• on the left-hand side is the standard hydrogen electrode, and
• on the right-hand side is the electrode the potential of which is being defined.

By convention:

E_Cell := E_Cathode − E_Anode

From the above, for the cell with the standard hydrogen electrode (potential of 0 by convention), one obtains:

E_Cell = E_Right − 0 = E_Electrode

The left-right convention is consistent with the international agreement that redox potentials be given for reactions written in the form of reduction half-reactions.

Electrode potential is measured in volts (V).

Revised text

Electrode potential, also known as Cell Potential, E, in electrochemistry, according to an IUPAC definition, is the electromotive force of a cell built of two electrodes:

• on the left-hand side is the standard hydrogen electrode, and
• on the right-hand side is the electrode potential of which is being defined.

It is the maximum potential difference between the electrodes of a voltaic cell and can be measured with a voltmeter.

By convention:

E_Cell := E_Cathode − E_Anode

which can also be represented as:

E_Cell := E_Reduction − E_Oxidation

since the reduction half-reaction occurs at the cathode and the oxidation half-reaction occurs at the anode.

From the above, for the cell with the standard hydrogen electrode (potential of 0 by convention), one obtains:

E_Cell = E_Right − 0 = E_Electrode

The left-right convention is consistent with the international agreement that redox potentials be given for reactions written in the form of reduction half-reactions. A reduction potential is a measure of the tendency for a species to act as an oxidizing agent, which is the gain electrons

Electrode potential is measured in volts (V).