الفهرس 
Introduction
MethanolOnly 14 pages are availabe for public view
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Abstract
1. Solvent effects on the kinetics of chemical reactions were reported in different organic solvent water mixtures. The effect of dielectric constant on the reaction rate was studied using equations related to the rate constant of reaction to the dielectric constant of the solution. 2. Preliminary studies have been done to acertain the stoichiometric structure of the formed complex, it was concluded from the molar ratio method that 1:1 complex was formed.On the other hand, the order was deduced by applying the initial rate method. where the reaction was found to be firstorder in both the metal ion and the ligand. However, the kinetic studies were performed under the conditions of pseudo first order with excess concentration of gold (III) ion to attain maximum degree of complexation. 3. The kinetics of the complex formation reaction of pyridinium bromide Nacetic acid with gold (III) ion were investigated in methanolwater mixtures up to 100%by weight of methanol. The studies were performed in a wide range of temperatures 20500 C and the system was found to obey Arrhenius equation. The pseudo first order constant, isocomposition activation energy, isodielectric activation energy and frequency factor were calculated. The rate constants were found to decrease on successive addition of methanol. The effect of temperature, dielectric constant and solvent composition (concentration of water) on the complexation reaction all were discussed. 4. The complex formation kinetics was also studied in ethanolwater mixtures up to 100% ethanol by weight and at the temperature range 20500C. The reaction kinetics was also performed under pseudofirst order kinetics, the rate constants, isocomposition, isodielectric activation energies all were calculated. The reaction rate decreases on progressive addition of ethanol. The isocomposition activation energy increased with successive addition of alcohol, and also isodielectric activation energy. The effect of temperature, dielectric constant and water concentration (solvent component) were discussed.