ISSN:
0538-8066
Schlagwort(e):
Chemistry
;
Physical Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The kinetics of the gas-phase reaction between NO2 and trichloroethene has been investigated in the temperature range 303-362.2 K. The pressure of NO2 was varied betwen 5.1 and 48.7 torr and that of trichloroethene between 7.3 and 69.5 torr. The reaction was homogeneous. Two products were formed: nitrosyl chloride, ClNO, and glyoxyloxyl chloride, HC[O]C[O]Cl, which was identified by its infrared spectrum and its molecular weight determined by chromatography. The rate of consumption of the reactants was independent of the total pressure and can be represented by a second-order reaction: \documentclass{article}\pagestyle{empty}\begin{document}$$ -d[{\rm NO}_2]/dt = - 2d[{\rm CHClCCl}_2]/dt = k[{\rm NO}_2][{\rm CHClCCl}_2] $$\end{document} The following mechanism was proposed to explain the experimental results: The following expression was obtained for k: \documentclass{article}\pagestyle{empty}\begin{document}$$ k= 2k_1 k_3/[k_2 + k_3] = 4.07 \pm 1.2 \,\times\, 10^2 \exp [-8800\, \pm\, 800\,{\rm cal\,mol}^{-1}/ RT]1\,{\rm mol}^{-1}\,{\rm s}^{-1} $$\end{document}. © John Wiley & Sons, Inc.
Zusätzliches Material:
2 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/kin.550240708
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