Le Chatelier's principle
Le Chatelier's principle

A dynamic equilibrium is reached in a closed system when the forward and reverse reactions occur at equal rates. The concentrations of reactants and products remain constant, but both reactions continue.
Step-by-step lessons covering AQA GCSE Chemistry 6.2.4 The effect of changing conditions on equilibrium (HT only) for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.