𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An empirical correlation of second virial coefficients

✍ Scribed by Constantine Tsonopoulos

Publisher
American Institute of Chemical Engineers
Year
1974
Tongue
English
Weight
1011 KB
Volume
20
Category
Article
ISSN
0001-1541

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new correlation of second virial coefficients of both polar and nonpolar systems is presented. It uses the Pitzer‐Curl correlation for nonpolar compounds, but in a modified form. The second virial coefficient of nonhydrogen bonding compounds (ketones, acetaldehyde, acetonitrile, ethers) and weakly hydrogen bonding compounds (phenol) is fitted satisfactorily with only one additional parameter per compound, which is shown to be a strong function of the reduced dipole moment. Two parameters are needed for hydrogen bonding compounds (alcohols, water), but for alcohols, one parameter has been kept constant and the other expressed as a function of the reduced dipole moment. The extension of the correlation to mixtures is satisfactory, direct, and involves only one coefficient per binary.

πŸ“œ SIMILAR VOLUMES

Correlation of second virial coefficient
Correlation of second virial coefficients through potential function parameters
✍ Robert G. Kunz; Robert S. Kapner πŸ“‚ Article πŸ“… 1971 πŸ› American Institute of Chemical Engineers 🌐 English βš– 666 KB

## Abstract An analytical technique based on the method of least squares has been developed to fit experimental second virial coefficients to the functional form derived from the Lennard‐Jones (6–12) potential. Both the functional form and the normal equations of the least squares fit are rigorousl

Prediction of second virial coefficients
Prediction of second virial coefficients from intrinsic viscosities
✍ Chong Meng Kok; Alfred Rudin πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 English βš– 600 KB

## Abstract One of the most readily available characteristics of a polymer sample is its intrinsic viscosity in a particular solvent. This datum can often be estimated reasonably from a single relative viscosity measurement. A number of theories permit the calculation of the second virial coefficie