The Dance of Dynamic Balance

Part of Equilibrium (HT) · Section 1 of 14

IntroductionUnit: Rates of ReactionGCSE

This introduction covers The Dance of Dynamic Balance 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 1 of 14 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.

📖 The Dance of Dynamic Balance

Imagine a crowded dance floor where people are constantly moving between two rooms. Sometimes more people flow into Room A, sometimes into Room B. But if the same number of people enter each room every minute as leave it, the rooms stay at constant "fullness" — even though everyone is still moving. This is dynamic equilibrium. In chemistry, reversible reactions reach a point where the forward and backward reactions happen at exactly the same rate. Nothing seems to change, but at the molecular level, everything is still reacting. And here's the clever part: if you disturb this balance, the system shifts to restore it. This is Le Chatelier's Principle.
⚖️ The Stubborn Scale Analogy

Equilibrium is like a stubborn balance scale! If you add weight to one side, the scale shifts to oppose the change. Add more reactants? The system shifts to make more products. Increase pressure? It shifts to the side with fewer gas molecules. The system always tries to counteract what you do — that's Le Chatelier's Principle!

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

23 questions on Equilibrium (HT) — practise free

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