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|Type:||Artigo de periódico|
|Title:||Measurements Of Excess Molar Enthalpy And Excess Molar Heat Capacity Of (1-heptanol Or 1-octanol)+(diethylamine Or S-butylamine) Mixtures At 298.15 K And 0.1 Mpa|
|Abstract:||Experimental data of excess molar enthalpy (H mE ) and excess molar heat capacity (C pmE ) of binary mixtures containing (1-heptanol or 1-octanol)+(diethylamine or s-butylamine) have been determined as a function of composition at 298.15 K and at 0.1 MPa using a modified 1455 Parr solution calorimeter. The excess molar enthalpy data are negative and show parabolic format over the whole composition range; however, the excess molar heat capacity values, whose curves show a S-shape, are positive in the 0.0 to 0.7 molar fraction range and negative between the molar fraction values 0.7 to 1.0. The applicability of the ERAS-model to correlate the excess molar enthalpy data was tested. The calculated data values are in good agreement with the experimental ones. The experimental behavior of H mE is interpreted in terms of specific interactions between 1-alkanol and amine molecules. © 2009 Akadémiai Kiadó, Budapest, Hungary.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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