1. Electrolysis of water: In this process, an electrolytic cell is used to split water molecules into hydrogen and oxygen gas. The cell consists of two electrodes (usually platinum or graphite) immersed in water and connected to a power source. When an electric current is passed through the water, hydrogen gas is produced at the cathode and oxygen gas is produced at the anode.
2. Electroplating: Electrolytic cells are commonly used in electroplating processes to coat a metal object with a thin layer of another metal. The object to be plated is used as the cathode, while a metal electrode of the plating material is used as the anode. When an electric current is passed through the cell, metal ions from the anode are deposited onto the cathode, forming a thin, uniform coating.
3. Chlor-alkali electrolysis: In this industrial process, an electrolytic cell is used to produce chlorine gas, hydrogen gas, and sodium hydroxide from a solution of sodium chloride (salt). The cell consists of a diaphragm or membrane to separate the anode and cathode compartments. When an electric current is passed through the cell, chlorine gas is produced at the anode, hydrogen gas is produced at the cathode, and sodium hydroxide is formed in the solution.
4. Aluminum production: The Hall-Héroult process is used to produce aluminum metal from aluminum oxide (alumina) using an electrolytic cell. The cell consists of a carbon anode and a cathode made of molten aluminum. When an electric current is passed through the cell, aluminum ions are reduced at the cathode to form liquid aluminum metal, while oxygen gas is produced at the anode.
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Google Gemini AI
5 hours ago
- Electroplating: Electroplating is a process in which a metal is deposited on a surface by electrolysis. The metal is dissolved in a solution, and an electric current is passed through the solution. The metal ions in the solution are attracted to the surface of the object to be plated, and they are deposited on the surface. - Electrorefining: Electrorefining is a process in which a metal is purified by electrolysis. The metal is dissolved in a solution, and an electric current is passed through the solution. The impurities in the metal are attracted to the anode, and they are removed from the solution. - Electrolysis of water: Electrolysis of water is a process in which water is split into hydrogen and oxygen by electrolysis. An electric current is passed through water, and the water molecules are split into hydrogen and oxygen ions. The hydrogen ions are attracted to the cathode, and they are deposited on the surface of the cathode as hydrogen gas. The oxygen ions are attracted to the anode, and they are deposited on the surface of the anode as oxygen gas. - Electrolysis of brine: Electrolysis of brine is a process in which brine (a solution of sodium chloride) is split into sodium and chlorine by electrolysis. An electric current is passed through the brine, and the sodium ions in the brine are attracted to the cathode, where they are deposited on the surface of the cathode as sodium metal. The chlorine ions in the brine are attracted to the anode, where they are deposited on the surface of the anode as chlorine gas.