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Analysis of the Reaction Rate Coefficients for Slow Bimolecular Chemical Reactions

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Abstract

Simple bimolecular reactions \(A_1+A_2\rightleftharpoons A_3+A_4\) are analyzed within the framework of the Boltzmann equation in the initial stage of a chemical reaction with the system far from chemical equilibrium. The Chapman-Enskog methodology is applied to determine the coefficients of the expansion of the distribution functions in terms of Sonine polynomials for peculiar molecular velocities. The results are applied to the reaction \(H_2 +Cl\rightleftharpoons HCl+H\), and the influence of the non-Maxwellian distribution and of the activation-energy dependent reactive cross sections upon the forward and reverse reaction rate coefficients are discussed.

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Acknowledgements

GMK acknowledges the support of the CNPq and TGS acknowledges the support of the CAPES.

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Authors and Affiliations

  1. Departamento de Física, Universidade Federal do Paraná, Curitiba, Brazil

    Gilberto M. Kremer & Tiago G. Silva

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  1. Gilberto M. Kremer
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  2. Tiago G. Silva
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Correspondence to Gilberto M. Kremer.

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Dedicated to Professor I-Shih Liu on the occasion of his 70th birthday.

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Kremer, G.M., Silva, T.G. Analysis of the Reaction Rate Coefficients for Slow Bimolecular Chemical Reactions. Braz J Phys 42, 400–409 (2012). https://doi.org/10.1007/s13538-012-0086-x

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  • DOI: https://doi.org/10.1007/s13538-012-0086-x

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