Abstract
We present a detailed analysis of Wertheim's multi-density formulation for the thermodynamic properties of associating fluids with a single attraction site. Graphical expressions are explicitly illustrated for the partition function, multi-densities and direct correlation functions, and they are compared with those from the classical single-density formulation of simple fluids. The steric incompatibility among three monomers greatly simplifies cluster integrals of associating fluids, which allows dimerizing association only. Graphical expressions for the pressure and the Helmholtz energy are derived by using functional derivatives, which provide a theoretical base for TPT and SAFT equations of state.
Original language | English |
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Pages (from-to) | 374-380 |
Number of pages | 7 |
Journal | Korean Journal of Chemical Engineering |
Volume | 31 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2014 |
Keywords
- Associating Fluid
- Cluster Integral
- Graph Theory
- Multi-density
- SAFT
- TPT