Page 2: Electrolysis Process
This page focuses on the principles and process of electrolysis, particularly in molten electrolysis examples.
Definition: Electrolysis is a chemical change caused by passing an electric current through an ionic compound in molten or aqueous form.
Highlight: Ionic compounds only conduct electricity when molten or in solution, as ions must be free to move.
The page explains electrode processes and terminology:
Vocabulary:
- Electrolyte: Substance undergoing electrolysis
- Anode: Positive electrode where oxidation occurs
- Cathode: Negative electrode where reduction occurs
- OILRIG: Oxidation Is Loss, Reduction Is Gain
Example: The electrolysis of molten lead(II) bromide is detailed, showing the formation of bromine gas at the anode and solid lead at the cathode.
The document emphasizes the importance of using appropriate electrode materials, typically carbon (graphite) due to its conductivity and chemical stability.
