Comment on Vapor Phase Homogeneous Nucleation of CH₃CN and the Scaling Law for Onset Supersaturation Ratios

Author

Barbara N. Hale, Missouri University of Science and TechnologyFollow
Brendan Kelly

Abstract

We point out that the scaling law for onset vapor phase nucleation, lnS_onset ≈ 0.53 [Ω(T_c/T-1)]³², with Ω = 1.77 (from CH₃CN surface tension data) predicts the temperature dependence and approximate magnitude of CH₃CN supersaturation ratio data, S. This is contrary to the conclusions of Wright, Caldwell and El-Shall who estimate too large a value (2.14) for Ω. We note that Ω, the excess molecular surface entropy/k, is more reliably extracted from the temperature derivative of the surface tension data.

Recommended Citation

B. N. Hale and B. Kelly, "Comment on Vapor Phase Homogeneous Nucleation of CH₃CN and the Scaling Law for Onset Supersaturation Ratios," Chemical Physics Letters, vol. 189, no. 1, pp. 100 - 102, Elsevier, Jan 1992.

The definitive version is available at https://doi.org/10.1016/0009-2614(92)85160-C

Department(s)

Physics

International Standard Serial Number (ISSN)

0009-2614

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1992 Elsevier, All rights reserved.

Publication Date

01 Jan 1992