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Predictions of Entropy and Gibbs Energy for Carbonyl Sulfide

[Image: see text] Many chemical and physical equilibrium conditions can be determined from minimizing the Gibbs free energies of the system. Efficient analytical representations of the entropy and Gibbs free energy of carbonyl sulfide remain elusive in the communality of science and engineering. Her...

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Detalles Bibliográficos
Autores principales: Jia, Chun-Sheng, Wang, Yi-Ting, Wei, Lin-Sheng, Wang, Chao-Wen, Peng, Xiao-Long, Zhang, Lie-Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882136/
https://www.ncbi.nlm.nih.gov/pubmed/31788634
http://dx.doi.org/10.1021/acsomega.9b02950
Descripción
Sumario:[Image: see text] Many chemical and physical equilibrium conditions can be determined from minimizing the Gibbs free energies of the system. Efficient analytical representations of the entropy and Gibbs free energy of carbonyl sulfide remain elusive in the communality of science and engineering. Here, we report two analytical representations of the entropy and Gibbs free energy for carbonyl sulfide, and the prediction procedures only involve six molecular constants of the carbonyl sulfide molecule. In the temperature range from 300 to 6000 K, the average relative deviations of the predicted molar entropy and reduced Gibbs free energy values of carbonyl sulfide from the National Institute of Standards and Technology database are arrived at 0.150 and 0.189%, respectively.