Le Chatelier's principle When a chemical system at
equilibrium is disturbed then it
regains equilibrium by undergoing a net
reaction that reduces the effect of the disturbance to try to restore K.
¬
®
aA + bB cC + dD
•addition of reactant A to the LHS promotes
the forward reaction LHS® RHS
•addition of
product C to the RHS promotes the reverse reaction LHS¬RHS