If the forward and backward reactions have different rate constants then how is dynamic equilibrium defined as when the forward rate is equal to the backward rate?
The rate(forwards) = kf[A] and the rate(backwards) = kb[B], where kf, and kb are the forward and backward rate constants
Therefore as rate(forwards) = rate(backwards)
kf[A] = kb[B]
Hence if kf does not equal kb, then the two concentrations are not equal.