Edexcel IGCSE Chemistry · Spec 3.19C-3.22C
Dynamic Equilibrium & Le Chatelier's Principle
Dynamic equilibrium and how Le Chatelier's principle predicts the effect of changing conditions.
Chemistry revision video
Dynamic Equilibrium & Le Chatelier's Principle
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Spec 3.19C-3.22C
What you need to know
- Describe dynamic equilibrium
- State Le Chatelier's principle
- Predict the effect of changing conditions
Active recall
Quick check
Answer each question before opening the answer.
What is dynamic equilibrium?
In a closed system, the forward and backward reactions happen at the same rate, so the concentrations stay constant.
How does increasing pressure affect a gas equilibrium?
It shifts the equilibrium towards the side with fewer gas molecules.
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