Asymmetric criticality in weakly compressible liquid mixtures
authors Perez-Sanchez, G; Losada-Perez, P; Cerdeirina, CA; Sengers, JV; Anisimov, MA
nationality International
journal JOURNAL OF CHEMICAL PHYSICS
author keywords critical mixtures; critical points; liquid mixtures; liquid theory; mixing; phase separation
keywords COEXISTENCE-CURVE DIAMETERS; CRITICAL REGION; CRITICAL-POINT; LIGHT-SCATTERING; THERMODYNAMIC PROPERTIES; DIMETHYL CARBONATE; PHASE-EQUILIBRIA; BINARY-SYSTEMS; TURBIDITY; FLUIDS
abstract The thermodynamics of asymmetric liquid-liquid criticality is updated by incorporating pressure effects into the complete-scaling formulation earlier developed for incompressible liquid mixtures [C. A. Cerdeirin approximate to a , Chem. Phys. Lett. 424, 414 (2006); J. T. Wang , Phys. Rev. E 77, 031127 (2008)]. Specifically, we show that pressure mixing enters into weakly compressible liquid mixtures as a consequence of the pressure dependence of the critical parameters. The theory is used to analyze experimental coexistence-curve data in the mole fraction-temperature, density-temperature, and partial density-temperature planes for a large number of binary liquid mixtures. It is shown how the asymmetry coefficients in the scaling fields are related to the difference in molecular volumes of the two liquid components. The work resolves the question of the so-called "best order parameter" discussed in the literature during the past decades.
publisher AMER INST PHYSICS
issn 0021-9606
year published 2010
volume 132
issue 15
digital object identifier (doi) 10.1063/1.3378626
web of science category Chemistry, Physical; Physics, Atomic, Molecular & Chemical
subject category Chemistry; Physics
unique article identifier WOS:000276971500024
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 2.843
5 year journal impact factor 2.743
category normalized journal impact factor percentile 60.149
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg