C8 - Equilibrium Flashcards
What 2 things do we need in order to achieve equilibrium?
- Sealed container
2. Reversible reaction
What’s a reversible reaction?
The products react to re-form the original reactants
What happens in a reversible reaction at equilibrium?
The rate of the forward reaction is the same as the rate of the reverse reaction
What happens when you increase temperature in a reversible reaction?
Increasing temp favours the endothermic reaction (+)
What happens when you decrease temperature in a reversible reaction?
Decreasing temp favours the exothermic reaction (-)
What happens when you increase pressure?
Increasing pressure favours the reaction with fewer molecules of gas
What happens when you decrease pressure?
Decreasing pressure favours the reaction with a greater number of molecules of gas
Explain the meaning of the term ‘Closed System’
Products and reactants cannot leave or enter
What is Le Châtelier’s Principle?
When you change conditions in a system of equilibrium, the position of equilibrium shifts as to cancel out the change
