Reverse reaction rate from equilibrium thermodynamics
= Reverse reaction rate from equilibrium thermodynamics
For an elementary reversible reaction, detailed balance gives $k_f\prod_r n_r^{\nu_r}=k_r\prod_p n_p^{\nu_p}$ at equilibrium. Hence the reverse rate coefficient is the forward coefficient divided by the equilibrium constant, with units fixed by the reaction stoichiometry.