Principle

During an electrolysis reaction, the deposited mass m of a substance is directly proportional to the flow of charge (First Faraday’s law). The second Faraday law states that the electrochemical equivalents k (deposited mass per charge unit) behave like the equivalent masses (molar mass M divided by the valency z) of the elements. Both laws can be confirmed experimentally by water decomposition using an apparatus according to Hofmann.

 

What you can learn about


Faraday law

Water decomposion by electrolysis

Calculation of deposited mass during an electrolysis