Kinetic Polynomials
Guy B Marin, Gregory S. Yablonsky, Denis Constales · 2018
The analysis of nonlinear mechanisms and the corresponding kinetic models is much more difficult than that of linear ones. This chapter presents a form of the general kinetic description for nonlinear mechanisms and the corresponding kinetic models named as kinetic polynomial. It demonstrates that the overall reaction rate in the general nonlinear case cannot be presented as the difference between two terms representing the forward and reverse reaction rates. The chapter shows that nevertheless the kinetic-polynomial description is consistent with thermodynamics. The quasi-steady state approximation is a commonly used method for eliminating intermediates from kinetic models of complex reactions to simplify these models. In chemical kinetics, the overall reaction rate is a logical choice for the single variable. The cycle characteristic is small in the vicinity of thermodynamic equilibrium. The idea of the principle of critical simplification was first expressed using a model for the oxidation of carbon monoxide over a platinum catalyst.