An open system continuously interacts with its environment, while a
closed system is isolated from its surroundings
Reversible reaction
A reaction is reversible when products can be converted back to reactants and vice versa.
Le Chatelier's principle
When the equilibrium in a closed system is disturbed, the system will re-instate a new equilibrium by favouring the reaction that will oppose the disturbance.
Chemical equilibrium
It is a dynamic equilibrium when the rate of the forward reaction equals the rate of the reverse reaction
