Consideration of initial correlations of the same type in reactions A+B→B and A+B→C+B

A new method is used to derive the binary non-markovian integro-differential kinetic equations of irreversible reactions with respect to initial correlations of the same type. The source of inhomogeneous integro-differential equation is determined by initial correlations which is in full accord with the properties of kinetic equations of non-equilibrium statistical mechanics. A procedure is found to reduce the derived equations into the differential form of the equations of chemical kinetics.