Estimation of the Heat Capacities of Organic Liquids as a Function of Temperature using Group Additivity. I. Hydrocarbon Compounds

Autor: Eugene S. Domalski, Vlastimil Růžička
Rok vydání: 1993
Předmět:
Zdroj: Journal of Physical and Chemical Reference Data. 22:597-618
ISSN: 1529-7845
0047-2689
Popis: A second‐order group additivity method has been developed for the estimation of the heat capacity of liquid hydrocarbons as a function of temperature in the range from the melting temperature to the normal boiling temperature. The temperature dependence of group contributions and structural corrections has been represented by a polynomial expression. The adjustable parameters in the polynomials have been calculated using a weighted least squares minimization procedure. Recommended heat capacities from a large compilation of critically evaluated data that contains over 1300 organic liquids served as a database both for the development and testing of the method.
Databáze: OpenAIRE