Chemistry › Section M · Equilibrium › Topic M.3
Le Chatelier's principle
An equilibrium mixture left alone never changes, but chemists rarely leave it alone. Le Chatelier's principle predicts how an equilibrium responds when you add or remove a substance, squeeze it, or heat it, and it is how industry pushes reactions towards the products it wants.
In this topic
- Disturbing a balance
- Changing a concentration
- Worked example: adding a reactant
- Changing the pressure by changing the volume
- Worked example: squeezing a brown gas
- Changing the temperature
- Catalysts change speed, not position
- Worked example: designing the Haber process
- Equilibrium in your blood
- Common mistakes to avoid
- Key takeaways
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