TITLE:
The Analysis of the Equilibrium Cluster Structure in Supercritical Carbon Dioxide
AUTHORS:
Boris Sedunov
KEYWORDS:
Real Gas; Supercritical Fluid; Cluster; Bond Energy; Carbon Dioxide
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.3 No.12A,
December
31,
2012
ABSTRACT:
The monomer fraction density based analysis of precise
thermophysical data for pure fluids is developed to study the molecular
structures in supercritical fluids in general and in CO2 in particular. The series expansion by
powers of the monomer fraction density of the potential energy density is used
to discover the cluster structure in supercritical fluids and the clusters’
bond energies in CO2. The method of clusters separation between
classes of loose and dense clusters in the CO2 supercritical fluid
is developed. The method of the energetically averaged number of dense clusters
is developed to study the mechanism of the soft structural transition
between the gas-like and liquid-like fluids in the supercritical
CO2.