is a process of interchanging of atoms and ions by the removal or addition of electrons from the external circuit. Electrolysis consumesto drive. Electrolysis is useful in the separation of elements from ores which occurs naturally.

In the process of Electrolysis, a direct current is given to the ionic substance which produces the chemical reaction at the electrodes and materials starts separating from electrodes.

There are the two laws of electrolysis described by Faraday:

Faraday's first law of electrolysis states that “The mass of ions on theis directly proportional to the quantity of electricity”.

If m= mass of the ions and Q is the quantity ofwhere Q=I x t, where I is the current and t is the time, then according to the first law: m

Where Z is a constant and is known as the electrochemical equivalent.

Faraday's second law of electrolysis states that “The masses of ions of different substances by the same quantity of electricity are proportional to their chemical equivalent weight”.

Electrolysis is used in many fields. Some of the main uses are as under:

Electrolysis is used in the production of aluminum, lithium, sodium, potassium, magnesium, copper, chlorine and many other chemicals.

Electrolysis is also used in the production of oxygen and hydrogen. It has many other uses such as preventing from rust of different metals, in making of battery chargers etc.

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