Faraday’s Law of Electrolysis FAQs

What is Electrolysis?

Electrolysis is a chemical process in which an electric current is used to stimulate a non-spontaneous chemical reaction which typically results in deposition or liberation of substances at the electrodes.

What is meant by 1 Faraday?

One Faraday or Faraday’s constant is the amount of charge required to deposit or liberate one equivalent weight of a substance during an electrolysis process. Its value is approximately taken as 96500 coulombs.

What is meant by the term ‘equivalent weight’ in Faraday’s second law of electrolysis?

Equivalent weight of a substance implies the weight of a substance that liberates one mole of electrons during a chemical reaction in electrolysis.

What are the applications of Faraday’s law of electrolysis?

Faraday’s law of electrolysis are used in various practical applications where electrolysis is carried out for some commercial purpose such as electroplating, electrolytic refining and electrochemical machining, etc.

What is an Electrolytic Cell?

Electrolytic cell is an electrochemical cell in undergoes reaction when electric current is passed through it.

What is an Electrode?

An electrode is a conducting to that conducts electric current to the solutions. All the oxidation and reduction occur at electrodes.



Faraday’s Laws of Electrolysis

Faraday’s Law of Electrolysis proposed by Michael Faraday deals with the quantitative analysis of Electrolysis. It relates the mass deposited at any electrode and the amount of charge passed through them. Electrolysis is a process in which an electric current stimulates a non-spontaneous chemical reaction. In this process, metal electrodes are dipped in an electrolytic solution and a flow of ions is created through the passage of current by connecting wires to the electrodes. This flow of ions causes a chemical reaction that results in mass deposition at one electrode and the dissolution of the other. The mass deposited at the electrode depends on the amount of charge passed through the solution. Faraday’s law of electrolysis provides a basis for mathematical analysis of the mass deposited at electrodes and the amount of charge passed through them.

In this article, we will discuss two laws of electrolysis given by Faraday, their application, and limitations, solve numerical problems based on them, and FAQs related to them.

Table of Content

  • What is Electrolysis?
  • Faraday’s Law of Electrolysis
  • Applications of Faraday’s Law of Electrolysis
  • Limitations of Faraday’s Law of Electrolysis
  • Solved Examples on Faraday’s Law of Electrolysis

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What is Electrolysis?

Electrolysis is the process of breaking a compound into its constituent ions with the use of current. The word electrolysis is composed of two words Electro and lysis. Electro stands for electricity and lysis means meaning. Hence, in this process, when current is passed to the ionic solution, the ions get separated and deposited on the electrodes. The electrochemical cell in which the process of electrolysis occurs is called the electrolytic cell....

Faraday’s Law of Electrolysis

Faraday’s Law of Electrolysis was given by an English scientist named Michael Faraday in 1834. His main contributions were in the field of electrochemistry and electromagnetism. It deals with the amount of ions produced and the charge passed through the cell. Let’s discuss the two laws of electrolysis given by him one by one as follows:...

Applications of Faraday’s Law of Electrolysis

Faraday’s law of electrolysis is used for the following purposes:...

Limitations of Faraday’s Law of Electrolysis

Faraday’s law of electrolysis helps in calculating the amount of ion deposition and the amount of current passed through the solution. Although, it has several benefits it has got some limitations. These limitations are mentioned below:...

Solved Examples on Faraday’s Law of Electrolysis

Example 1: Electrolysis of dilute aqueous NaCl solution is carried out by passing 20 mA current. What will be the time required to liberate 2 grams of H2 gas at the cathode?...

Faraday’s Law of Electrolysis FAQs

What is Electrolysis?...