Isobaric (vapour+liquid) equilibrium for N-methyl-2-pyrrolidone with branched alcohols
| Autor: | Cheng-Ting Hsieh, P. Gnanakumari, M. V. Prabhakara Rao, Ho-mu Lin, Pannuru Venkatesu, Ming-Jer Lee |
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| Rok vydání: | 2009 |
| Předmět: |
UNIQUAC
Intermolecular force Thermodynamics Atomic and Molecular Physics and Optics Gibbs free energy Propanol symbols.namesake chemistry.chemical_compound Boiling point chemistry N-Methyl-2-pyrrolidone Non-random two-liquid model symbols Isobaric process General Materials Science Physical and Theoretical Chemistry |
| Zdroj: | The Journal of Chemical Thermodynamics. 41:184-188 |
| ISSN: | 0021-9614 |
| DOI: | 10.1016/j.jct.2008.09.021 |
| Popis: | The (vapour + liquid) equilibrium (VLE) and boiling temperature measurements have been determined at 95.3 kPa as a function of composition for the binary liquid mixtures of N -methyl-2-pyrrolidone (NMP) with branched alcohols using a Swietoslawski-ebulliometer. The branched alcohols include 2-propanol, 2-butanol, 2-methyl-l- propanol, 2-methyl-2-propanol, and 3-methyl-l-butanol. The experimental temperature-composition ( T – x ) results were used to estimate Wilson parameters and then used to calculate the equilibrium vapour compositions and the excess Gibbs free energy at T = 298.15 K. The experimental temperature-composition ( T , x ) results were correlated with the Wilson, the NRTL and the UNIQUAC models. The experimental results are interpreted in terms of intermolecular interactions between constituent molecules. |
| Databáze: | OpenAIRE |
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