equilibrium

• equilibrium - where the reaction continues to go backwards and forwards at the same rate and so the concentration of reactants and products remain constant
• reaction does not stop when equilibrium is attained
• addition of reactant or removal of product - moves to right
• addition of product or removal of reactant - moves to left
• increase temperature - moves in direction of endothermic
• decrease temperature - moves in direction of exothermic
• increase pressure - moves in direction which decreases number of mols
• decrease pressure - moves in direction which increases number of moles
• adding a catalyst - does not alter position of equilibrium but changes rate of reaction