The reaction rate would be changed if the heat of reaction was provided. According to the Arrhenius equation, the reaction rate depends on temperature. In homogeneous catalytic oxidation - reduction, H2O2 decomposition under the effect of catalyst complex was characterized by the speed of emission of oxygen gas. This paper presented the research results that determined the physicochemical parameters of the process under the effect of catalase catalytic complex [Co(Acac)+. The activation energy, thermal effects, ftee energy of the process, entropy, and peroxo complex constant form have been identified as 8.855 kcal/mol, 8.253 kcal/mol, 20.79 kcal/mol, -41.39 cal/mol, and 3.106x 10 exponent 13, respectively. The researched results would be the scientific basis for further study catalytic complex application for practice.