I know that gibbs free energy for say a body will be equal to = Gibbs free standard energy at 1M and Ph7(-rtlnkeq) (Where k is the concentration of product/ concentration of reactant at equilibrium)+rtlnk. How can we use the standard gibbs free for irreversible spontaneous processes? Is it that the product concentration is wayyyy higher than the reactant, therefore, irreversible chemical processes can actually be reversible, given we put more product into the body system so that le chatlier's principal may occur? For another example for the standard free energy of keq, if the product concentration is way higher than reactant, is there even product moving to the reactant side and reactant moving to the product side at equal rates? Maybe it takes a longgg time but the rates occur. Or maybe when nothing moves across and no rates for both sides is an equal rate, omols/sec.