Dynamic equilibrium occurs when forward and reverse reactions proceed at equal rates, with no visible change in concentrations. Not static balance—constant molecular activity at microscopic level.
HSC Syllabus: Module 5.2 (Equilibria and Acid-Base Reactions) requires understanding of dynamic equilibrium, equilibrium constant, and Le Chatelier's principle.
Pro tip: Use PhET's 'Reactions and Rates' simulation to show molecular-level behaviour of equilibrium. Students see why macroscopic observations occur at the microscopic level.
