dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDarros-Barbosa, R.
dc.creatorBalaban, M. O.
dc.creatorTeixeira, A. A.
dc.date2014-05-20T15:26:57Z
dc.date2016-10-25T18:01:39Z
dc.date2014-05-20T15:26:57Z
dc.date2016-10-25T18:01:39Z
dc.date2003-01-01
dc.date.accessioned2017-04-05T23:59:31Z
dc.date.available2017-04-05T23:59:31Z
dc.identifierInternational Journal of Food Properties. New York: Marcel Dekker Inc., v. 6, n. 2, p. 239-258, 2003.
dc.identifier1094-2912
dc.identifierhttp://hdl.handle.net/11449/37017
dc.identifierhttp://acervodigital.unesp.br/handle/11449/37017
dc.identifier10.1081/JFP-120017845
dc.identifierWOS:000183945600005
dc.identifierhttp://dx.doi.org/10.1081/JFP-120017845
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/880412
dc.descriptionHeat capacities of binary aqueous solutions of different concentrations of sucrose, glucose, fructose, citric acid, malic acid, and inorganic salts were measured with a differential scanning calorimeter in the temperature range from 5degreesC to 65degreesC. Heat capacity increased with increasing water content and increasing temperature. At low concentrations, heat capacity approached that of pure water, with a less pronounced effect of temperature, and similar abnormal behavior of pure water with a minimum around 30degreesC-40degreesC. Literature data, when available agreed relatively well with experimental values. A correction factor, based on the assumption of chemical equilibrium between liquid and gas phase in the Differential Scanning Calorimeter, was proposed to correct for the water evaporation due to temperature rise. Experimental data were fitted to predictive models. Excess molar heat capacity was calculated using the Redlich-Kister equation to represent the deviation from the additive ideal model.
dc.languageeng
dc.publisherMarcel Dekker Inc
dc.relationInternational Journal of Food Properties
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectheat capacity
dc.subjectdifferential scanning calorimetry
dc.subjectaqueous solutions
dc.subjectpredictive model
dc.subjectexcess functions
dc.titleTemperature and concentration dependence of heat capacity of model aqueous solutions
dc.typeOtro


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