Title: Thermophysical properties of dilute hydrogen sulfide gas
Authors: Hellmann, Robert 
Bich, Eckard
Vogel, Eckhard
Vesovic, Velisa
Language: eng
Issue Date: 12-Apr-2012
Document Type: Article
Journal / Series / Working Paper (HSU): Journal of chemical & engineering data
Volume: 57
Issue: 4
Page Start: 1312
Page End: 1317
New, simple, and practical correlations for shear viscosity, self-diffusion coefficient, bulk viscosity, and thermal conductivity of hydrogen sulfide in the limit of zero density are provided, together with a correlation for the second pressure virial coefficient. The correlations are based on the values of thermophysical properties generated from a highly accurate, fully quantum-mechanical, ab initio potential energy surface. The validation of the computed values of thermophysical properties against the rather scarce experimental data demonstrates an excellent agreement with the most accurate data sets. The analysis undertaken indicates that the correlated values provide the most reliable, accurate, and internally consistent representation of thermophysical properties of hydrogen sulfide. The correlations extend over the temperature range (180 to 2000) K. The behavior of each transport property is represented by an independent correlation of the appropriate effective collision cross section as a function of temperature, while the behavior of the second pressure virial coefficient is directly represented as a function of temperature. The uncertainty of the proposed transport property correlations varies from ± 0.4 % for the shear viscosity in the temperature range (300 to 700) K to ± 5.0 % for the bulk viscosity. The uncertainty of the second pressure virial coefficient correlation is estimated to be of the order of ± 1 cm 3·mol -1 at temperatures above 400 K, decreasing to ± 30 cm 3·mol -1 at 180 K. © 2012 American Chemical Society.
Organization Units (connected with the publication): Universität Rostock
ISSN: 00219568
Publisher DOI: 10.1021/je3000926
Appears in Collections:6 - Bibliographic Data - Publications of the HSU Researchers (before HSU)

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