F

Faraday's Law of Electrolysis

m = (M × I × t) / (F × z)
Quick Reference
Formula / Notationm = (M × I × t) / (F × z)
Also Known AsFaraday electrolysis law, electrolytic law, Faraday electrolysis

What is Faraday's Law of Electrolysis?

Faraday's Laws of Electrolysis describe the relationship between the amount of substance deposited or dissolved at an electrode and the quantity of electric charge passed. The first law states that the mass of substance deposited is proportional to the quantity of electricity. The second law states that for the same quantity of electricity, the masses of different substances deposited are proportional to their equivalent weights.

Formula & Notation

m = (M × I × t) / (F × z)

Other Names / Synonyms: Faraday electrolysis law, electrolytic law, Faraday electrolysis

Properties & Characteristics

First Law: m ∝ Q (mass proportional to charge). Second Law: m ∝ M/z (mass proportional to equivalent weight). Faraday constant F = 96,485 C/mol. Charge Q = I × t. Mass m = (M × I × t)/(F × z).

Uses & Applications

Electroplating and electroforming. Electrolytic refining of metals (copper, aluminum). Electrochemical synthesis. Calculating electrode mass changes. Designing electrolytic cells. Battery technology.

Safety Information

Electrical hazards in electrolytic processes. Generated gases (H₂, Cl₂) may be toxic or flammable. Electrolyte solutions may be corrosive. Proper ventilation and protective equipment required.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Faraday's Law of Electrolysis
Formula m = (M × I × t) / (F × z)
Synonyms Faraday electrolysis law, electrolytic law, Faraday electrolysis

Frequently Asked Questions

Faraday's Laws of Electrolysis describe the relationship between the amount of substance deposited or dissolved at an electrode and the quantity of electric charge passed. The first law states that the mass of substance deposited is proportional to the quantity of electricity. The second law states that for the same quantity of electricity, the masses of different substances deposited are proportional to their equivalent weights.

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