Comment on Vapor Phase Homogeneous Nucleation of CH₃CN and the Scaling Law for Onset Supersaturation Ratios
We point out that the scaling law for onset vapor phase nucleation, lnSonset ≈ 0.53 [Ω(Tc/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.
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
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© 1992 Elsevier, All rights reserved.
01 Jan 1992