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Title of Journal: J Solution Chem

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Abbravation: Journal of Solution Chemistry

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Springer US

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DOI

10.1007/bf02098307

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ISSN

1572-8927

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Determination of Activation Energy for the Diffusi

Authors: Nilima S Rajurkar Mohini M Kute
Publish Date: 2009/12/18
Volume: 39, Issue: 1, Pages: 87-95
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Abstract

The study of the diffusion of ferric ions in agar gel containing transition metal sulfates was carried out The effect of gel concentration electrolyte concentration and temperature on the diffusion of Fe3+ ions in various transition metal sulfates was studied with a view to verify Wang’s model of diffusion and the applicability of transition state theory to diffusion in a gel medium The diffusion coefficients were measured using the zone diffusion technique For a given concentration of electrolyte the activation energy E is found to decrease with an increase in the charge density of the cation of the supporting electrolyte and for a given system it is found to decrease with increasing electrolyte concentration in agreement with Wang’s model This observation is explained on the basis of the distortion in the water structure caused by ions and agar molecules At a given electrolyte concentration the magnitude of the Arrhenius parameters E and D o is found to decrease with increasing gel concentration in agreement with the transition state theory of diffusion

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  2. Modified Screen-Printed Electrode for Potentiometric Determination of Copper(II) in Water Samples
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  6. Liquid–Liquid Equilibria of the Methanol + Toluene + Methylcyclohexane Ternary System at 278.15, 283.15, 288.15, 293.15, 298.15 and 303.15 K
  7. Complexation of Am(III) and Nd(III) by 1,10-Phenanthroline-2,9-Dicarboxylic Acid
  8. Diffusion Coefficients for the Ternary System Water + Chloroform + Acetic Acid at 25 °C
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  10. Electroluminescent Properties of LECs Based on Ionic Transition Metal Complexes Using Tetrazole-Based Ancillary Ligand
  11. High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF 6 ]
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  15. The Mixing Enthalpy Interaction Coefficients of N , N ′-Hexamethylenebisacetamide with l -Alanine and l -Serine in Aqueous Glucose Solutions at 298.15 K
  16. Effect of Temperature on Salt–Salt Aqueous Biphasic Systems: Manifestations of Upper Critical Solution Temperature
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