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Rate constant for the reaction C + + CO 2 at collision energies 0.04 to 2.5eV
Author(s) -
Fahey D. W.,
Fehsenfeld F. C.,
Ferguson E. E.
Publication year - 1981
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl008i010p01115
Subject(s) - reaction rate constant , ion , photoionization , yield (engineering) , thermal , range (aeronautics) , atomic physics , constant (computer programming) , activation energy , analytical chemistry (journal) , venus , energy (signal processing) , materials science , physics , chemistry , thermodynamics , kinetics , astrobiology , ionization , chromatography , quantum mechanics , computer science , programming language , composite material
The rate constant for the reaction C + + CO 2 has been measured over the energy range of thermal to 2.5eV. The present results yield (1.1 ± 0.2) (−9) cm³s −1 at thermal energy which agrees well with previous measurements. No energy dependence was found for the rate constant below 1eV. Above 1eV the rate constant was found to decrease with increasing energy. The present results indicate that energetic C + ions produced from the photoionization of CO 2 in the Venus ionosphere will not have loss rates greatly reduced from that of thermal C + ions.