Izenburua
Thermodiffusion, molecular diffusion and Soret coefficients of aromatic+n-alkane binary mixturesEgilea
Argitalpen data
2016Beste erakundeak
https://ror.org/00wvqgd19Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)
Bertsioa
Bertsio argitaratuaDokumentu-mota
ArtikuluaHizkuntza
IngelesaEskubideak
© 2016 AIP PublishingSarbidea
Sarbide irekiaArgitaratzailearen bertsioa
https://doi.org/10.1063/1.4964298Non argitaratua
Journal of Chemical Physics Vol. 145. N. 13. N. art. 134503. October, 2016Argitaratzailea
AIP PublishingGako-hitzak
Molecular dynamics
Nonequilibrium thermodynamics
Thermal effects
ODS 6 Agua limpia y saneamiento ... [+]
Nonequilibrium thermodynamics
Thermal effects
ODS 6 Agua limpia y saneamiento ... [+]
Molecular dynamics
Nonequilibrium thermodynamics
Thermal effects
ODS 6 Agua limpia y saneamiento
ODS 9 Industria, innovación e infraestructura [-]
Nonequilibrium thermodynamics
Thermal effects
ODS 6 Agua limpia y saneamiento
ODS 9 Industria, innovación e infraestructura [-]
UNESCO Sailkapena
Fluidoen mekanikaLaburpena
In the present work, we have measured the thermodiffusion coefficient of 51 binary liquid mixtures at 25 oC. These mixtures correspond to the series of the aromatics toluene and 1-methylnaphthalene wi ... [+]
In the present work, we have measured the thermodiffusion coefficient of 51 binary liquid mixtures at 25 oC. These mixtures correspond to the series of the aromatics toluene and 1-methylnaphthalene with n-alkanes nCi (i = 6, 8, 10, 12, and 14) at different mass fractions in the whole range. For that, we have used the thermogravitational technique. It is shown that the thermodiffusion coefficient is a linear function of the mass fraction in all the mixtures. Extrapolating the lines, we obtain the thermodiffusion coefficient in dilute solutions of n-alkanes for both toluene and 1-methylnaphthalene. These limiting values show a linear dependence with the inverse of the product of the molecular weights. In addition, we have measured the molecular diffusion coefficient of all the mixtures at 0.5 of mass fraction and at 25 oC, by the sliding symmetric tubes technique. It is observed that the product of this coefficient with the viscosity at the same concentrations takes a constant value for each of the series considered. Finally, we have also determined the Soret coefficient of the equimass mixtures by the combination of the measurements of thermodiffusion and molecular diffusion coefficients. [-]