Rates of ReactionKey Facts

Key Facts: Equilibrium

Part of Equilibrium (HT) · GCSE GCSE Chemistry revision

This key facts covers Key Facts: Equilibrium within Equilibrium (HT) for GCSE Chemistry. Revise Equilibrium (HT) in Rates of Reaction for GCSE Chemistry with 23 exam-style questions and 18 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 8 of 14 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 8 of 14

Practice

23 questions

Recall

18 flashcards

📌 Key Facts: Equilibrium

  • Dynamic equilibrium: Forward rate = backward rate in a closed system
  • Le Chatelier's Principle: System shifts to oppose any change
  • Temperature ↑: Shifts in endothermic direction (absorbs heat)
  • Concentration ↑: Shifts away from the increased substance
  • Pressure ↑: Shifts to side with fewer gas molecules
  • Catalysts: Speed up both directions equally, no position change
  • Concentrations constant but not necessarily equal at equilibrium

Keep building this topic

Read this section alongside the surrounding pages in Equilibrium (HT). That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Equilibrium (HT)

At dynamic equilibrium, which of the following is true?

  • A. The rate of the forward reaction equals the rate of the reverse reaction
  • B. The concentrations of reactants and products are always equal
  • C. The forward reaction stops and only the reverse reaction continues
  • D. All chemical reactions have stopped
1 markfoundation

Explain the effect of increasing temperature on the position of an equilibrium where the forward reaction is exothermic.

2 marksstandard

Quick Recall Flashcards

What conditions are needed for equilibrium?
A closed system (nothing can escape) and a reversible reaction
What does 'dynamic equilibrium' mean?
Forward and backward reactions happen at the same rate, so concentrations stay constant

23 questions on Equilibrium (HT) — practise free

Instant marking, adaptive difficulty, and 18 spaced repetition flashcards. Free until your GCSEs.

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