A standard cell potential can be determined by looking up the standard electrode potentials for both electrodes ( sometimes called half cell potentials ).
2.
When a reversible peak is observed, thermodynamic information in the form of a half cell potential E 0 1 / 2 can be determined.
3.
However, the total cell potential ( difference between oxidation and reduction half cell potentials ) will remain 1.23 V . This potential can be related to Gibbs free energy ( ?G ) by:
4.
The standard hydrogen electrode ( SHE ) is the reference from which all standard redox potentials are determined and has been assigned an arbitrary half cell potential of 0.0 mV . However, it is fragile and impractical for routine laboratory use.
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