Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/933
Authors: | Hamill, P.* D'Auria, R.* Turco, P. R.* |
Title: | An empirical approach to the nucleation of sulfuric acid droplets in the atmosphere | Issue Date: | 2003 | Series/Report no.: | 2/46 (2003) | URI: | http://hdl.handle.net/2122/933 | Keywords: | nucleation Gibbs energy aerosol microphysics |
Subject Classification: | 01. Atmosphere::01.01. Atmosphere::01.01.04. Processes and Dynamics | Abstract: | We use quantum mechanical evaluations of the Gibbs free energy of the hydrates of sulfuric acid, H2SO4. nH2O and (H2SO4)2 . nH2O to evaluate an empirical surface tension for sulfuric acid-water clusters containing few molecules. We use this surface tension to evaluate nucleation rates using classical heteromolecular theory. At low temperatures (T 213 K) the nucleation rates obtained with the empirical surface tensions are signifi cantly greater than those using bulk values of the surface tension. At higher temperatures the difference disappears. |
Appears in Collections: | Annals of Geophysics |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
331_340Hamill.pdf | 327.32 kB | Adobe PDF | View/Open |
Page view(s)
97
checked on Apr 17, 2024
Download(s) 50
213
checked on Apr 17, 2024