The investigation of thermodynamic parameters of kinetic reaction between o-phenylenediamine and gold (III)

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dc.contributor.authorAltun, Ozlen
dc.contributor.authorAkbas, Halide
dc.date.accessioned2024-06-12T11:09:37Z
dc.date.available2024-06-12T11:09:37Z
dc.date.issued2007
dc.departmentTrakya Üniversitesien_US
dc.description.abstractA visible spectrophotometric method has been developed for the reaction kinetics of o-phenylenediamine in the presence of gold (III). The method is based on the measurement of the absorbance of the reaction o-phenylenediamine and gold (III). Optimum conditions for the reaction were established as pH 6 at lambda=466 nm. When the reaction kinetic of o-phenylenediamine by gold (III) was investigated, it was observed that the following rate formula was found as In (A/A(0)) = -kt, according to absorbance measurements. The activation energy E-a and Arrhenius constant A were calculated from the Arrhenius equation as 1.009 kJ center dot mol(-1) and 3.46 center dot 10(-2) s(-1), respectively. Other activation thermodynamic parameters, entropy, Delta S (J center dot mol(-1) center dot K-1), enthalpy, Delta H (kJ center dot mol(-1)), Gibbs free energy, Delta G (kJ center dot mol(-1)) and equilibrium constant, K-e were calculated at T = (283.2, 303.2, 323.2, and 343.2) K. The study was exothermic due to the decrease of entropy and was a non-spontaneous process during activation. (c) 2007 Published by Elsevier Ltd.en_US
dc.identifier.doi10.1016/j.jct.2007.03.019
dc.identifier.endpage1417en_US
dc.identifier.issn0021-9614
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-35348981798en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1413en_US
dc.identifier.urihttps://doi.org/10.1016/j.jct.2007.03.019
dc.identifier.urihttps://hdl.handle.net/20.500.14551/22884
dc.identifier.volume39en_US
dc.identifier.wosWOS:000251160600001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAcademic Press Ltd Elsevier Science Ltden_US
dc.relation.ispartofJournal Of Chemical Thermodynamicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectO-Phenylenediamineen_US
dc.subjectGold (III)en_US
dc.subjectSpectrophotometryen_US
dc.subjectReaction Kineticen_US
dc.subjectThermodynamic Parametersen_US
dc.subjectSpectrophotometric Determinationen_US
dc.subjectGravimetric Determinationen_US
dc.subjectGolden_US
dc.subjectManganese(Ii)en_US
dc.subjectComplexesen_US
dc.subjectMechanismen_US
dc.titleThe investigation of thermodynamic parameters of kinetic reaction between o-phenylenediamine and gold (III)en_US
dc.typeArticleen_US

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