Singh AK
The kinetic of alkaline hydrolysis of ethyl cinnamate was investigated at different percentage of aqua-organic solvent mixture with Acetone (30 to 70% v/v) over the temperature range of 20°C to 40°C. The specific rate constant was found to be decreased with increasing proportion of solvent (Acetone) at all the temperature range. The Iso-composition Activation energy (EC) was also evaluated which decreases with solvent composition in (water-Acetone) system. The number of water molecule associated with the activated complex is found to be increase (0.7003 to 0.786) in waterAcetone system. The thermodynamic activation parameter such as Enthalpy of Activation (Δ H* ), Entropy of Activation (Δ S* ) and Gibb’s free energy of activation (Δ G* ) were also calculated.
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