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The reaction of atomic hydrogen with germane - Temperature dependence of the rate constant and implications for germane photochemistry in the atmospheres of Jupiter and SaturnStudies 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.
Document ID
19930049241
Document Type
Reprint (Version printed in journal)
Authors
Nava, David F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Payne, Walter A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Marston, George (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stief, Louis J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
March 25, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: E3
ISSN: 0148-0227
Subject Category
LUNAR AND PLANETARY EXPLORATION
Distribution Limits
Public
Copyright
Other