ESTUDIO DE UNA REACCIÓN INORGÁNICA EN FASE GASEOSA POR MODELACIÓN MATEMÁTICA

One impact that the advent of computer techniques has had on the development of chemical kinetics is the ability to run the task in addition to direct experimental study any chemical reactant system. Thus, the mathematical treatment of the continuous model of any reaction mechanism is in fact the corroboration of the hypotheses derived from experimental results. The possibility of having microcomputers and software to easily model any system, makes it feasible to incorporate a lab in physical chemistry in the curriculum, "D" of the career of Chemistry Degree. To this end, we chose a classic and the number of experimental studies that have been dedicated to establishing a plausible mechanism to explain fully its phenomenology. It is the inorganic gas-phase reaction of bromine with hydrogen, and the practice is in essence the purpose of predicting the experimental behavior of the process by mathematical modeling. The mathematical model obtained, and the chosen software application, allows for the theoretical data of the concentrations of the reactants, products and intermediates from which one can estimate the induction period of the system. The results obtained allow us to see that as had been stated by Lind Bodestein and dates as far back as 1906, this system evolves almost in a steady state. On the other hand, one can delve into mechanistic details of reaction kinetics, such as the importance of the transition from product inhibition and radical recombination active centers Bromo. All results found in this work allow the student to have a deeper and more detailed mechanistic aspects on the kinetics of a system studied and taught to apply the direct task using as a means of computing tools with software coding numerical methods very developed and sensitive to even rigid systems, as is the case.