This definitions covers Key Definitions within Equilibrium (HT) for GCSE Chemistry. Revise Equilibrium (HT) in Rates of Reaction for GCSE Chemistry with 20 exam-style questions and 15 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 7 of 13 in this topic. Make sure you can use the exact wording confidently, because definition marks are often lost through vague language.
Topic position
Section 7 of 13
Practice
20 questions
Recall
15 flashcards
📖 Key Definitions
Dynamic equilibrium: A state reached in a closed system when the forward and backward reaction rates are equal, so concentrations remain constant. Both reactions still occur simultaneously.
Le Chatelier's Principle: If a system at equilibrium is disturbed by a change in conditions, the equilibrium position will shift in the direction that opposes the change.
Equilibrium position: A description of whether the equilibrium mixture contains mostly products (right) or mostly reactants (left), or approximately equal amounts.
Closed system: A system from which no matter can enter or escape, allowing equilibrium to be established.