But what is dynamic equilibrium exactly? Therefore, the definition of chemical equilibrium can also be given in this way –The state of a reversible reaction in which the quantities of reactants and products are constant and do not change with time is called chemical equilibrium. Kc = [p]^P/[r]^R Does not include solids or liquids. The concentration of the reactants and products stay constant at equilibrium, even though the forward and backward reactions are still occurring. See more. When one or more of the reactants or products are gas in any equilibrium reaction, the ...
 
equilibrium definition chemistry 2021