Electrochemistry is a branch of chemistry that deals with the relationship between **electricity** and chemical reactions
Explanation level
Introduction
Electrochemistry is a branch of chemistry that deals with the relationship between electricity and chemical reactions. It has a significant role in technology, energy, and manufacturing.
Electrochemistry has many practical applications in daily life:
Electroplating is used to coat steel objects with metals like zinc, tin, and chromium for protection from corrosion.
Hydrogen produced via electrolysis is used in fuel cells for clean energy.
Electrolysis of brine is critical for producing chlorine (used in disinfectants) and sodium hydroxide (used in soap manufacturing).
This unit covers two main types of electrochemical cells:
Electrolytic cells — use electrical energy to drive non-spontaneous chemical reactions.
Galvanic (voltaic) cells — generate electrical energy from spontaneous chemical reactions.
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