Chemical equilibrium is a fundamental concept in chemistry that describes the state of a system where the concentrations of reactants and products no longer change over time. This occurs when the rates of forward and reverse reactions are equal, and the system reaches a stable balance.
K = [C]^c [D]^d / [A]^a [B]^b
where K is the equilibrium constant, and [A], [B], [C], and [D] are the concentrations of reactants and products. petrucci genel kimya 2 pdf