... Faraday's Laws of Electrolysis When an electric current is made to pass through a cell, the current may cause chemical reactions to occur at its electrodes. This process is called electrolysis and the cell in which it occurs is called an electrolytic cell. In the 1830s, the English scientist Michael Faraday studied the reactions which take place at the electrodes of electrolytic cells. Faraday showed that electrochemical reactions follow all normal chemical stoichiometric relations, but in addition follow certain stoichiometric rules related to charge. These are known as Faraday's laws of electrolysis. In his experimental form, but using modern terms, they are as follows: The mass of an element discharged at an electrode m is directly proportional to the amount of electrical charge Q passed through the electrode. If the same amount of electrical charge Q is passed through several electrodes, the mass m of an element discharged at each electrode ...

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