Electrolytic Cells

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What is Electrolysis?

Electrolysis is a method of using a direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction. The direct electric current passes through an ionic substance that is dissolved in a suitable solvent, resulting in chemical reactions at the electrodes and separation of materials.

What are the Main Components of Electrolysis?

- An electrolyte: a substance containing free ions, which are the carriers of electric current in the electrolyte.

- A direct current supply: provides the energy necessary to discharge the ions in the electrolyte. Electrons carry electric current in the external circuit.

- Two electrodes: electrical conductors which provides the physical interface between the electrical circuit providing the energy and the electrolyte. The metal electrode connected to the positive terminal of the battery is called the anode (+). The metal electrode connected to the negative terminal of the battery is called the cathode (-).

What is the Difference Between an Electrolytic Cell and a Galvanic Cell?

What is an Inert Electrode?

An inert electrode is one which, during electrolysis, can supply or withdraw electrons from an electrolyte, and thereby promote chemical reactions without itself participating in any reaction.

How Do We Use Electrolytic Cells in Everyday Life?

Applications of Electrolysis:

1.Electroplating of Metals:

2.Extraction of Metals (Electro-Metallurgy)

3.Electro-refining of Metals

By the Chemistry Enthusiasts

Nadim Hamad, Adnan Soubra, Nadeem Habre, Jad Choucair, Rami Sayess

International College 6th B