Electrolysis 1
CHEMISTRY SSS2 Third Term
WEEK 3
Electrolysis 1
Performance objectives
Students should be able to:
- Define electrolysis, electrolyte, electrodes, and electrolytic cells.
- Distinguish between strong and weak electrolytes.
- Draw an electrolytic and electrochemical cells.
Content
Electrolysis
Electrolysis is the process by which electric current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction). The process is carried out in an electrolytic cell, an apparatus consisting of positive and negative electrodes held apart and dipped into a solution containing positively and negatively charged ions. The substance to be transformed may form the electrode, may constitute the solution or may be dissolved in the solution. Electric current (i.e., electrons) enters through the negatively charged electrode (cathode); components of the.... View More
Subscribe now to gain full access to this lesson note
Take Me ThereClick here to gain access to the full notes.