ACTIVATION PARAMETER AND SOLVENT EFFECT ON SOLVOLYSIS OF ETHYL BENZOATE IN AQUO-ORGANIC SOLVENT SYSTEM

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A. K. SINGH

Abstract

The rate of solvolysis of ethyl benzoate was estimated volumetrically over the temperature range of 20°c to 400c. in water-methanol mixture at different composition. The depletion and enhancement in value of iso-composition activation energy and iso- dielectric activation shows solvation in transition state and de-solvation in initial state respectively. The effect of solvent on reaction rate was tested in term of activation parameter. Simultaneous decrease in values of DH* and DS* with increase in value of DG* with solvent composition show that the reaction is Enthalpy domination and Entropy controlled .There is weak interaction between solvent and solute because the values of  iso-kinetic temperature is less than 300 K/Mole2.

Keywords:
Ethyl benzoate, water-methanol activation parameter, solvent effect, solvent-solute interaction, Iso-kinetic temperature, specific and non specific salvation, solvation in initial and transition state, Barclay-Butler rule

Article Details

How to Cite
SINGH, A. K. (2019). ACTIVATION PARAMETER AND SOLVENT EFFECT ON SOLVOLYSIS OF ETHYL BENZOATE IN AQUO-ORGANIC SOLVENT SYSTEM. Journal of Applied Chemical Science International, 9((3-4), 168-172. Retrieved from http://www.ikprress.org/index.php/JACSI/article/view/4440
Section
Original Research Article