Excess isobaric molar heat capacities and excess molar volumes for ethanol + n-decane and n-undecane systems

Densities between (278.15 and 308.15) K and isobaric heat capacities per unit volume from (280.15 to 308.15) K for ethanol + n-decane and n-undecane systems were determined at atmospheric pressure over the whole composition range. From these data, excess molar volumes and excess isobaric molar heat...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 2005-09, Vol.37 (9), p.935-940
Main Authors: Peleteiro, J., Troncoso, J., González-Salgado, D., Valencia, J.L., Souto-Caride, M., Romani, L.
Format: Article
Language:English
Subjects:
Association
Chemical thermodynamics
Chemistry
Density
Ethanol
Exact sciences and technology
General and physical chemistry
Heat capacity
Linear alkanes
Mixtures
Thermodynamic properties
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Summary:Densities between (278.15 and 308.15) K and isobaric heat capacities per unit volume from (280.15 to 308.15) K for ethanol + n-decane and n-undecane systems were determined at atmospheric pressure over the whole composition range. From these data, excess molar volumes and excess isobaric molar heat capacities were calculated by means of the Benson and Kiyohara’s criterion. Results were analyzed in terms of the well-known microscopic effects that take place in alkanol + n-alkane systems. Their dependence with the size of the linear alkane was studied with the help of literature data of short alkyl chain 1-alkanol + long alkyl chain alkane systems.
ISSN:0021-9614
1096-3626
DOI:10.1016/j.jct.2004.12.010