On the evaporation of ammonium sulfate solution [electronic resource].
- Berkeley, Calif. : Lawrence Berkeley National Laboratory. Advanced Light Source, 2009. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
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- 22 : digital, PDF file
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- Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory. Advanced Light Source, and United States. Department of Energy. Office of Scientific and Technical Information
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- Free-to-read Unrestricted online access
- Aqueous evaporation and condensation kinetics are poorly understood, and uncertainties in their rates affect predictions of cloud behavior and therefore climate. We measured the cooling rate of 3 M ammonium sulfate droplets undergoing free evaporation via Raman thermometry. Analysis of the measurements yields a value of 0.58 ± 0.05 for the evaporation coefficient, identical to that previously determined for pure water. These results imply that subsaturated aqueous ammonium sulfate, which is the most abundant inorganic component of atmospheric aerosol, does not affect the vapor-liquid exchange mechanism for cloud droplets, despite reducing the saturation vapor pressure of water significantly.
- Published through SciTech Connect., 07/16/2009., "lbnl-2972e", PNAS 106 45 ISSN 0027-8424 FT, Cohen, Ronald C.; Saykally, Richard J.; Drisdell, Walter S., and Chemical Sciences Division
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