Reversible Reactions

A reversible reaction at equilibrium has equal forward and reverse reaction rates.
Concentrations of reactants and products stay constant at equilibrium.
Le Chatelier’s principle predicts how changes in temperature, pressure, and concentration will affect equilibrium.
For exothermic reactions producing useful products, a balance must be found between using high temperatures (increasing reaction rates but favouring reverse reaction) and lower temperatures (favouring forward reaction and increasing yield but slower).