The kinetics for the liquid phase decomposition of A is studied in two mixed flow reactors in series; the second unit having twice the volume of the first one. At steady state with a feed containing A of 1 mol. l-1 and mean residence time of 96 seconds in the first reactor, the concentration of A in the first reactor is 0.5 mol. l-1 and in the second is 0.25 mol. l-1 Find the kinetic equation for the decomposition of A.