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:
- ECell := ECathode − EAnode
From the above, for the cell with the standard hydrogen electrode (potential of 0 by convention), one obtains:
- ECell = ERight − 0 = EElectrode
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).
Read more about Electrode Potential: Origin and Interpretation, Measurement, Potential Difference of A Cell Assembled of Two Electrodes
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“Children are potentially free and their life directly embodies nothing save potential freedom. Consequently they are not things and cannot be the property either of their parents or others.”
—Georg Wilhelm Friedrich Hegel (1770–1831)