Chemistry – Electrochemistry - Electrolysis | e-Consult

Electrolysis is the decomposition of a substance by the passage of an electric current. Specifically, when referring to ionic compounds, electrolysis is the process where an electric current is used to break down an ionic compound into its constituent ions. This decomposition can occur in two main states: molten (liquid state above the melting point) or aqueous solution (dissolved in water).

The conditions under which electrolysis typically occurs are:

• Molten state: The substance must be in a molten or liquid state above its melting point.
• Aqueous solution: The substance must be dissolved in water to form an aqueous solution.
• Presence of an electrolyte: The substance must be an ionic compound, meaning it dissociates into ions when dissolved or melted.
• External power source: A constant voltage or potential difference must be applied to provide the driving force for the ionic reactions.