Dynamic Equilibrium
Chemistry: AQA GCSE Higher, topic 6.2.2
Dynamic Equilibrium
When reversible reactions happen within a closed system, a dynamic equilibrium will eventually be reached.
Closed system
- A closed system is a system where reactants and products can neither be added nor removed.
Dynamic equilibrium
- At dynamic equilibrium, the rates of the forwards and backwards reactions are equal.
- The equilibrium is dynamic because both the forward and backward reactions are still taking place.
- The concentrations of reactants and products do not change when a reaction is at dynamic equilibrium.
Test yourself on Dynamic Equilibrium
A sealed flask contains a reversible reaction, and no reactants or products can enter or leave the flask. What type of system is this?
Why is chemical equilibrium described as dynamic?
Which word describes this type of chemical equilibrium?
What must be true of a reaction for it to eventually reach dynamic equilibrium?
A reversible reaction takes place in a flask that is open to the air, so gases can escape. Will this reaction ever reach dynamic equilibrium?