The reaction of atomic hydrogen with germane - Temperature dependence of the rate constant and implications for germane photochemistry in the atmospheres of Jupiter and Saturn

Details The reaction of atomic hydrogen with germane - Temperature dependence of the rate constant and implications for germane photochemistry in the atmospheres of Jupiter and Saturn The reaction of atomic hydrogen with germane - Temperature dependence of the rate constant and implications for germane photochemistry in the atmospheres of Jupiter and Saturn

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.5531n&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E3, p. 5531-5537.

Physics

2

Atmospheric Chemistry, Germanium Compounds, Jupiter Atmosphere, Photochemical Reactions, Saturn Atmosphere, Temperature Dependence, Atmospheric Composition, Hydrogen Atoms, Reaction Kinetics, Planets, Gas Planets, Outer Planets, Jupiter, Saturn, Photochemistry, Hydrogen, Germane, Chemistry, Thermal Effects, Temperature, Origin, Atmosphere, Abundance, Formation, Pressure, Parameters, Photolysis, Production Rate, Laboratory Studies, Experiments, Fluorescence, Kinetics

Scientific paper

Studies of the formation and loss processes for GeH4 are required in order to provide data to help determine the major chemical form in which germanium exists in the atmospheres of Jupiter and Saturn. The reaction of hydrogen atoms with germane is one of the most important of these reactions. The absolute rate constant for this reaction as a function of temperature and pressure is studied. Flash photolysis of dilute mixtures of GeH4 in argon, combined with time-resolved detection of H atoms via Lyman alpha resonance fluorescence, is employed to measure the reaction rate. The reaction is shown to be moderately rapid, independent of total pressure, but possessing a positive temperature dependence.

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