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Medientyp:
E-Artikel
Titel:
Homogeneous nucleation rate measurements in supersaturated water vapor
Beteiligte:
Brus, David;
Ždímal, Vladimír;
Smolík, Jiří
Erschienen:
AIP Publishing, 2008
Erschienen in:The Journal of Chemical Physics
Sprache:
Englisch
DOI:
10.1063/1.3000629
ISSN:
0021-9606;
1089-7690
Entstehung:
Anmerkungen:
Beschreibung:
<jats:p>The rate of homogeneous nucleation in supersaturated vapors of water was studied experimentally using a thermal diffusion cloud chamber. Helium was used as a carrier gas. Our study covers a range of nucleation rates from 3×10−1to3×102cm−3s−1 at four isotherms: 290, 300, 310, and 320K. The molecular content of critical clusters was estimated from the slopes of experimental data. The measured isothermal dependencies of nucleation rate of water on saturation ratio were compared with the prediction of the classical theory of homogeneous nucleation, the empirical prediction of Wölk et al. [J. Chem. Phys. 117, 10 (2002)], the scaled model of Hale [Phys. Rev. A 33, 4156 (1986)], and the former nucleation onset data.</jats:p>