Accession Number : ADD095505

Title :   Standard Chemical Thermodynamic Properties of Alkane Isomer Groups,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Alberty, R A ; Gehrig, C A

Report Date : Jan 1984

Pagination or Media Count : 30

Abstract : The chemical thermodynamic properties of alkane isomer groups from D4H10 to D10H22 have been calculated from 200 to 1500 K from Scott's tables of 1974. The numbers of stereoisomers in each isomer group have been checked and all of them have been included in the calculations. The following properties for alkane isomer groups have been calculated with energy in joules for a standard state pressure of 1 bar: standard heat capacity at constant pressure, standard entropy, standard enthalpy of formation, standard Gibbs energy of formation, standard enthalpy relative to the elements at 298.15 K. Equilibrium mole fractions within isomer groups have been calculated for the ideal gas state from 200 to 1500 K. The four basic properties are given for all the individual isomers in joules for a standard state pressure of 1 bar. The properties of individual alkanes from C4H10 to C10H22 have also been calculated using the Benson group method and the resulting isomer group properties and equilibrium mole fractions have been calculated. Originator supplied keywords include: Alkanes; Benson method; Enthalpy of formation; Entropy; Gibbs energy of formation; Heat capacity; Isomer group thermodynamic properties; Isomer mole fractions; and Thermodynamic properties.

Descriptors :   *ALKANES, *THERMOCHEMISTRY, *ISOMERS, PRESSURE, ENTHALPY, SPECIFIC HEAT, CHEMICAL PROPERTIES, THERMODYNAMIC PROPERTIES, STANDARDS, PRESSURE, CHEMICAL PROPERTIES, ENTROPY, HEAT OF FORMATION, FREE ENERGY

Subject Categories : Organic Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE