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Title: Agent-based Model of Oxidation Reactions of Ferrous Ions
Authors: Rivera, A. L.
Bernal, A, S. Ramos
Mendoza, A. Negrón
Keywords: Chemical reactions
kinetics of reactions
prey-predator model
Issue Date: 8-Aug-2016
Publisher: Chitkara University Publications
Abstract: Molecules in comets are formed through chemical oxidation reactions induced by radiation. Thesereactions can be simulated in laboratory experiments applying gamma radiation to samples at low temperatures. The kinetics of the induced reactions can be modeled by a system of coupled nonlinear ordinary differential equations describing the mass balance of all of the species involved. However, finding a traditional solution to this system is difficult because of the large number of reactions involved, the need to solve all of the equations simultaneously, and the strong dependence on the initial conditions due to the non-linear character of the equations. For each species, the mass-balance equation includes all of the reaction rates leading to production (source terms) and to destruction (sink terms). In this sense, each equation is analogous to the prey-predator model, with the sink terms consider to be the “prey” and the source terms as the “predators”. Due to this, we can use an agent-based model to follow the kinetics of the chemical reactions. In this paper, we present a code in Python for an agent-based model of the chemical oxidation of ferrous ions (Fe2+) induced by gamma radiation and in the presence of molecular oxygen. We compare the results that this code produces for molar concentrations of Fe3+over time with those obtained in the laboratory.
ISSN: Print - 2321-8649
Online 2321-9289
Appears in Collections:JNP Volume 4 Number 1 (August - 2016)

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