Use of the fundamental equation to derive expressions for the transformed Gibbs energy, entropy, and enthalpy of a gaseous reaction system at a specified partial pressure of a reactant

Journal Article · Mon Jun 15 00:00:00 EDT 1992 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.462212· OSTI ID:7039064

Alberty, R A; Oppenheim, I ^[1]

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1. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

When the chemical potentials or partial pressures of some reactants are externally fixed, a Legendre transform can be used to define a new thermodynamic potential that provides the criterion of equilibrium and leads to a new fundamental equation that provides the means for computing the equilibrium composition and deriving equations for the transformed thermodynamic properties of the equilibrium system. This method is applied to a simple system and to the polymerization of the alkylbenzenes in the presence of ethylene, which involves an infinite number of isomer groups.

• DOE Contract Number: FG02-85ER13454
• OSTI ID: 7039064
• Journal Information: Journal of Chemical Physics; (United States), Vol. 96:12; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHEMICAL REACTIONS
EQUATIONS
THERMODYNAMICS
ALKYL RADICALS
BENZENE
CHEMICAL COMPOSITION
ENTHALPY
ENTROPY
EQUILIBRIUM
ETHYLENE
FREE ENTHALPY
ISOMERS
LEGENDRE POLYNOMIALS
PARTIAL PRESSURE
POLYMERIZATION
TRANSFORMATIONS
USES
ALKENES
AROMATICS
ENERGY
FUNCTIONS
HYDROCARBONS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
POLYNOMIALS
RADICALS
THERMODYNAMIC PROPERTIES
400201* - Chemical & Physicochemical Properties