What are the units for the equilibrium constant, K?
1 answer
The units for the equilibrium constant, K, depend on the reaction being considered. However, the units of K are always determined by the concentrations of the reactants and products in the equilibrium expression. If the reaction is in terms of concentrations (Molarity), the units of K will be M^-1 or M^-2 depending on the order of the reaction. If the reaction is in terms of partial pressures, the units of K will be atm^-1 or atm^-2.