An Empirical Equation for Thermodynamic Properties of Light Hydrocarbons and Their Mixtures I. Methane, Ethane, Propane and n-Butane
- 1 April 1940
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 8 (4) , 334-345
- https://doi.org/10.1063/1.1750658
Abstract
An empirical equation is given for the isothermal variation with density of the work content of pure hydrocarbons in the gaseous or liquid state. From this fundamental equation are derived (a) an equation of state, (b) an equation for the fugacity, and (c) an equation for the isothermal variation of the enthalpy. These equations summarize P‐V‐T properties of the gaseous or liquid phase, critical properties, vapor pressures, and latent heats of evaporation. A procedure is suggested for determining numerical values of the parameters in the equation. Such values are given for methane, ethane, propane, and n‐butane. A comparison is made between observed properties of these hydrocarbons and those predicted by the equations.Keywords
This publication has 19 references indexed in Scilit:
- The Critical Constants of EthaneJournal of the American Chemical Society, 1939
- The Vapor Pressure and Critical Constants of Normal ButaneJournal of the American Chemical Society, 1939
- Hindered Rotation of the Methyl Groups in Propane. The Heat Capacity, Vapor Pressure, Heats of Fusion and Vaporization of Propane. Entropy and Density of the GasJournal of the American Chemical Society, 1938
- The Compressibility of and an Equation of State for Gaseous PropaneJournal of the American Chemical Society, 1937
- Isotherms of methane between 0 and 150°C for densities up to 225 amagat. Calculated specific heat, energy and entropy in the same regionPhysica, 1936
- THE COMPRESSIBILITY ISOTHERMS OF METHANE AT PRESSURES TO 1000 ATMOSPHERES AND AT TEMPERATURES FROM -70 TO 200°Journal of the American Chemical Society, 1931
- The Volume of Eighteen Liquids as a Function of Pressure and TemperatureProceedings of the American Academy of Arts and Sciences, 1931
- A New Equation of State for FluidsProceedings of the American Academy of Arts and Sciences, 1928
- The evaluation of Gibbs' phase-integral for imperfect gasesMathematical Proceedings of the Cambridge Philosophical Society, 1927
- The Thermal Properties of IsopentaneProceedings of the Physical Society of London, 1894