UNIT 5: Điện hóa học docx

ELECTROCHEMISTRY MAIN POINTS 1. Electrochemistry 1. Electrochemistry 2. Electrolysis and electroplating 2. Electrolysis and electroplating 3. Primary cells 3. Primary cells 4. Secondary cell 4. Secondary cell ELECTROCHEMISTRY • Electrical  Chemical: Effects of electric current on aqueous solutions (Electrolysis; Electroplating) • Chemical  Electrical: Cells CHEMICAL ENERGY ELECTRICAL ENERGY  NaCl electrolyte Electrolysis FARADAY’S LAWS • The mass of the product of electrolysis is directly proportional to the amount of electricity that passes through the electrolyte. • The mass of the substances liberated or deposited is proportional to electrochemical equivalent ELECTROPLATING