Thermodynamic properties and vapor pressures of polar fluids from a four-parameter corresponding-states method
A recently proposed extended Lee-Kesler corresponding-states method (ELK) for polar fluids which accurately predicts compressibility factors and departure functions is considered. Tables of polar deviation functions have been generated and values of the shape/size and polar parameters for 52 polar fluids have been calculated, allowing the method to be used for quick hand calculation in addition to the previous, more accurate, computer applications. Additionally, vapor pressures of 44 pure polar fluids were computed using the full version of the ELK and the equality of the Gibbs free energy criterion for phase equilibrium. An ELK vapor pressure correlation is proposed which is essentially numerically equivalent to, but computationally simpler than, the former method. Computed vapor pressures agree with experimental values as well or better than other vapor pressure equations designed exclusively for vapor pressure prediction of polar fluids.
- Research Organization:
- Wiltec Research Co., Inc., Provo, UT
- OSTI ID:
- 5737316
- Journal Information:
- Int. J. Thermophys.; (United States), Vol. 8:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLAR COMPOUNDS
COMPRESSIBILITY
ENTROPY
EQUILIBRIUM
FREE ENTHALPY
PARTIAL PRESSURE
VAPOR PRESSURE
ACCURACY
ALCOHOLS
ALDEHYDES
ANHYDRIDES
COMPUTER CALCULATIONS
COMPUTER CODES
ESTERS
ETHERS
KETONES
LIQUIDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHASE STUDIES
THERMODYNAMICS
THIOLS
VAPORS
ENERGY
FLUIDS
GASES
HYDROXY COMPOUNDS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
400201* - Chemical & Physicochemical Properties