Thermodynamics of aqueous solutions

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dc.contributor.authorErickson, Kristy M.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorHakin, Andrew W.
dc.date.accessioned2007-11-26T22:34:18Z
dc.date.available2007-11-26T22:34:18Z
dc.date.issued2007
dc.degree.levelMasters
dc.descriptionxiv, 148 leaves ; 29 cm.en
dc.description.abstractRelative densities and relative massic heat capacities have been measured for aqueous solutions of triflic acid (CF3SO3H), sodium triflate (NaCF3SO3), gadolinium triflate (Gd(CF3SO3)3), dysprosium triflate (Dy(CF3SO3)3), neodymium triflate (Nd(CF3SO3)3), erbium triflate (Er(CF3SO3)3), ytterbium triflate (Yb(CF3SO3)3), and yttrium triflate (Y(CF3SO3)3) at T = (288.15, 298.15, 313.15, and 328.15) K and p = 0.1 MPa. The resulting densities and massic heat capacities have been used to calculate out apparent molar volume and apparent molar heat capacity data for each of the investigated aqueous systems. The concentration dependencies of the apparent molar volumes and apparent molar heat capacities have been modeled using Pitzer-ion interaction equations. Single ion volumes and heat capacities have been calculated using estimates of the apparent molar properties at infinite dilution obtained from the Pitzer-ion interaction equations. These single ion values have, where possible, been compared with those previously reported in the literature. Also, relative densities have been measured for aqueous solutions of CF3SO3H, Gd(CF3SO3)3, Nd(CF3SO3)3, and Yb(CF3SO3)3 at T = (323.15, 348.15, 373.15, and 423.15) K and p = (5.00, 10.00, and 15.00) MPa. The resulting densities have been used to calculate apparent molar volumes. The concentration dependences of these properties have also been modeled using Pitzer-ion interaction equations. The apparent molar volumes have been used to calculate single ion volumes which, in turn, have been compared with those previously reported in the literature. This thesis also attempts to model the temperature, pressure, and concentration dependencies of the reported apparent molar properties of each system investigated using an equation of state commonly referred to as the density model. Where possible, the results of this model have been compared with those results from models previously reported in the literature.en
dc.identifier.urihttps://hdl.handle.net/10133/529
dc.language.isoen_USen
dc.publisherLethbridge, Alta. : University of Lethbridge, Faculty of Arts and Scienceen
dc.publisher.departmentDepartment of Chemistry and Biochemistryen
dc.publisher.facultyFaculty of Arts and Scienceen
dc.subjectDissertations, Academicen
dc.subjectHigh temperature chemistryen
dc.subjectSolution (Chemistry) -- Thermal propertiesen
dc.subjectThermochemistryen
dc.titleThermodynamics of aqueous solutionsen
dc.typeThesisen
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