Excess Molar Enthalpies of Nitrous Oxide/Hexane Mixtures in the Liquid and Supercritical Regions
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- 作者：Albertina Cabañ ; as ; Carlos Menduiñ ; a ; Concepció ; n Pando ; and Juan A. R. Renuncio
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：1998
- 出版时间：August 1998
- 年：1998
- 卷：37
- 期：8
- 页码：3036 - 3042
- 全文大小：79K
- 年卷期：v.37,no.8(August 1998)
- ISSN：1520-5045
文摘
The excess molar enthalpies 
of nitrous oxide (N2O)/hexane mixtures were measured in theliquid and supercritical region covering the whole concentration range. The 
values at308.15 K and 7.64 and 9.48 MPa and at 318.15 K and 12.27 and 15.00 MPa are moderatelypositive in the hexane-rich region and moderately negative in the N2O-rich region. The 
values at 308.15 K and 12.27 and 15.00 MPa are moderately positive over the entire compositionrange. Large negative 
values are obtained at 318.15 K and 7.64 and 9.48 MPa. Thechanges observed in 
with temperature and pressure are discussed in terms of liquid-vaporequilibrium and critical constants for N2O/hexane. The 
values for N2O/hexane mixturesare also calculated using cubic equations of state (EOS) and the classical and Wong-Sandlermixing rules.
of nitrous oxide (N2O)/hexane mixtures were measured in theliquid and supercritical region covering the whole concentration range. The values at308.15 K and 7.64 and 9.48 MPa and at 318.15 K and 12.27 and 15.00 MPa are moderatelypositive in the hexane-rich region and moderately negative in the N2O-rich region. The values at 308.15 K and 12.27 and 15.00 MPa are moderately positive over the entire compositionrange. Large negative values are obtained at 318.15 K and 7.64 and 9.48 MPa. Thechanges observed in with temperature and pressure are discussed in terms of liquid-vaporequilibrium and critical constants for N2O/hexane. The values for N2O/hexane mixturesare also calculated using cubic equations of state (EOS) and the classical and Wong-Sandlermixing rules.