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
Famous quotes containing the word potential:
“A child is born with the potential ability to learn Chinese or Swahili, play a kazoo, climb a tree, make a strudel or a birdhouse, take pleasure in finding the coordinates of a star. Genetic inheritance determines a child’s abilities and weaknesses. But those who raise a child call forth from that matrix the traits and talents they consider important.”
—Emilie Buchwald (20th century)