However, BEP parameters are not easy to derive due to the scarcity of thermodynamic and kinetic data for surface reactions. Furthermore, Blowers and Masel pointed out that for certain reaction families, such as the hydrogen transfer reaction family, BEP relations behave poorly for extremely exothermic and endothermic reactions. They proposed an alternative approximation which is referred as the Blowers-Masel approximation (BMA) in this study.