**Table 2 here**
With rate constants (ki -values) available, the mathematical model can be used to predict the reaction yield values under the same temperature condition. CCRD experiments performed under similar ultrasound power as which the kinetics were obtained were selected so the model could be applied with different initial conditions. The ultrasound power affects the temperature of the system and, thus, the equilibrium. Hence, the values of the FFA yield obtained experimentally and predicted by the model are shown in Table 3 . The model was able to predict FFA yield under the conditions evaluated with an average deviation of 17.32%. Since the data used for this validation was not obtained in the exact conditions of ultrasound power, a variation was expected. The applied model was, therefore, satisfactory to explain the reaction mechanisms and can be useful for phenomenological studies and process optimization.