Wertheim's first order thermodynamic perturbation theory (TPT1)

$Z_{\mathrm{T}\mathrm{P}\mathrm{T}\mathrm{1}}=\frac{p}{\rho k_{B}T}=m{Z}_{\mathrm{m}\mathrm{o}\mathrm{n}\mathrm{o}\mathrm{m}\mathrm{e}\mathrm{r}}-(m-1)(1+{\rho }_{\mathrm{m}\mathrm{o}\mathrm{n}\mathrm{o}\mathrm{m}\mathrm{e}\mathrm{r}}\frac{\partial \ln \mathrm{g}(\sigma )}{\partial {\rho }_{\mathrm{m}\mathrm{o}\mathrm{n}\mathrm{o}\mathrm{m}\mathrm{e}\mathrm{r}}})$

See also

• SAFT

References

1. M. S. Wertheim "Fluids with highly directional attractive forces. I. Statistical thermodynamics" Journal of Statistical Physics 35 pp. 19-34 (1984)
2. M. S. Wertheim "Fluids with highly directional attractive forces. II. Thermodynamic perturbation theory and integral equations" Journal of Statistical Physics 35 pp. 35-47 (1984)
3. M. S. Wertheim "Fluids with highly directional attractive forces. III. Multiple attraction sites" Journal of Statistical Physics 42 pp. 459-476 (1986)
4. M. S. Wertheim "Fluids with highly directional attractive forces. IV. Equilibrium polymerization" Journal of Statistical Physics 42 pp. 477-492 (1986)
5. M. S. Wertheim "Thermodynamic perturbation theory of polymerization", Journal of Chemical Physics 87 pp. 7323-7331 (1987)