A corollary of the nucleation theorem due to Kashchiev [Nucleation: Basic Theory with Applications (Butterworth-Heinemann, Oxford, 2000)] allows the volume V* of a critical bubble to be determined from nucleation rate measurements. The original derivation was limited to one-component, ideal gas bubbles with a vapor density much smaller than that of the ambient liquid. Here, an exact result is found for multicomponent, nonideal gas bubbles. Provided a weak density inequality holds, this result reduces to Kashchiev's simple form which thus has a much broader range of applicability than originally expected. Limited applications to droplets are also mentioned, and the utility of the pT,x form of the nucleation theorem as a sum rule is noted
G. Wilemski, "Volumes of Critical Bubbles from the Nucleation Theorem," Journal of Chemical Physics, American Institute of Physics (AIP), Sep 2006.
The definitive version is available at http://dx.doi.org/10.1063/1.2354493
United States. Department of Energy
Keywords and Phrases
Kashchiev; Nonideal Gas Bubble; Nucleation
Article - Journal
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