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Aerosol Science and Technology Volume 19, 1993 - Issue 2
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Original Articles

Atmospheric Gas-Aerosol Equilibrium I. Thermodynamic Model

Yong Pyo Kim Department of Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125
,
John H. Seinfeld Department of Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125
&
Pradeep Saxena Electric Power Research Institute, 3412 Hillview Avenue, Palo Alto, CA, 94304
Pages 157-181 | Received 30 Oct 1992, Accepted 26 Feb 1993, Published online: 12 Jun 2007
 
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Abstract

A rigorous and computationally efficient thermodynamic model that estimates the state and composition of atmospheric inorganic species between the gas and aerosol phases is presented. The estimation of important thermodynamic properties, equilibrium constants, ionic activity coefficients, water activity, and deliquescence points is described. Various sources and estimation methods for inorganic gas-liquid-solid equilibrium properties are compared and optimal approaches for the new equilibrium routine are incorporated.

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