Electrochemistry is the study of the relationship between electricity and chemical reactions. The most popular is the oxygen-hydrogen fuel cell, where two inert electrodes porous electrodes of nickel and nickel oxide are placed in an electrolytic solution such as hot caustic potash, in both compartments anode and cathode gaseous hydrogen and oxygen are bubbled into solution.
Cathode and anode are submerged in a solution of sulfuric acid acting as the electrolyte. The globe could be removed and used as source for experiments with electricity.
By the s—s, quantum electrochemistry was developed by Revaz Dogonadze and his pupils. The most efficient electrical power plant may only convert about 40 percent of the original chemical energy into electricity when burned or processed.
If the second electrode is also at standard conditions, then the measured cell potential is called the standard electrode potential for the electrode.
The salt bridge consists of a concentrated, nonreactive, electrolyte solution such as the sodium nitrate NaNO3 solution used in this example.