FARADY’S FIRST LAW OF ELECTROLYTES:
The mass of chemical substances collected at electrodes during electrolysis is directly proportional to the magnitude of electric current and the time of flow of current.
Mathematically:
According to the law;
W ∝ A x t
W = Z x A x t
Where
W = mass of element deposited
Z = electrochemical equivalent of the substance
A = amount of electric current in ampere
T = time in seconds
Coulomb: The coulomb is the unit of electric charge in the International System of Units (SI). It is defined as, “the amount of charge transported in one second by a current of one ampere.”
Coulomb “C” = Ampere “A” x time “t”
If, A= 1 Amperes, t= 1 second then,
W = Z x A x t
W = Z x 1 x 1
W = Z
Therefore, Electrochemical Equivalent Z: ”It is the weight of the substance collected at the electrodes, when one coulomb of electric charge is passed through the electrolyte.”
