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The soft‐solid model for liquids. Application to biodiesel and other materials of technological interest
Author(s) -
CastellónElizondo Erick,
Lutz Giselle,
MataSegreda Julio F.
Publication year - 2006
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1068
Subject(s) - chemistry , thermodynamics , enthalpy , biodiesel , molecule , activity coefficient , organic chemistry , catalysis , physics , aqueous solution
The coefficient of cubic expansion of liquids (α) correlates inversely with the corresponding value of enthalpy of vaporisation. The theoretical interpretation is based on the molecular view of liquids as modified solids made of molecules packed in a way that a few neighbouring molecules have been removed. The general equation for the coefficient of cubic expansion of solids was modified to describe the case of liquids regarded as soft solids . The empirical equation α = 0.087/Δ H vap was obtained for long‐chain liquids of low polarity such as biodiesel materials, when the enthalpy value is given in kJ/mol. Copyright © 2006 John Wiley & Sons, Ltd.