Le Chatelier’s Principle

Push it and it pushes back

An interactive lesson with 7 steps, about 6 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Disturb an equilibrium and it shifts to partly undo the disturbance.
• Only temperature changes K; concentration and pressure shift the position.
• Catalysts speed things up but don’t move the equilibrium.

Steps

1. Push and push back
2. Disturb it twice
3. Blue without more salt
4. Blue at room temperature
5. What changes K?
6. Squeeze the brown gas
7. Pushing an exothermic reaction