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Ion-solvent and ion-ion interactions of phosphomolybdic acid in aqueous solution of catechol at 298.15, 308.15, and 318.15 K
Authors:M N Roy  R S Sah  P P Pradhan  P K Roy
Institution:1.Department of Chemistry,North Bengal University,Darjeeling,India
Abstract:Apparent molar volume (V Ø) and viscosity B-coefficients were measured for phosphomolybdicacid in aqueous solution of catechol from solution density (ρ) and viscosity (η) at 298.15, 308.15, and 318.15 K at various solute concentrations. The experimental density data were evaluated by Masson equation and the derived data were interpreted in terms of ion-solvent and ion-ion interactions. The viscosity data have been analyzed using Jones-Dole equation and the derived parameters, B and A, have been interpreted in terms of ion-solvent and ion-ion interactions respectively. The structure-making or breaking capacity of the solute under investigation has been discussed in terms of sign of (δ 2 V Ø o /δT 2) P . The activation parameters of viscous flow were determined and discussed by application of transition state theory.
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