Standard electrode

The standard electrode is used in electrochemistry to determine the normal potential . It is a galvanic half-cell that meets the standard requirements:

• Temperature T = 298.15 K = 25 ° C
• Pressure p = 101325 Pa
• Concentration c = 1 mol / l

The electrode potential E , which is measured against the normal hydrogen electrode, is the normal potential E ^{0 of} the half-cell .

In the event of a deviation from the standard conditions, the electrode potential E is determined using the Nernst equation .

See also

• Accumulator , battery , Daniell element
• Electrodes : anode , cathode
• Electrochemical potential
• Redox potential , electrochemical series