Journal :   Asian Journal of Research in Chemistry

Volume No. :   12

Issue No. :  2

Year :  2019

Pages :   99-102

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Activation Parameter and Solvent effect on solvolysis of Ethyl benzoate in Aquo-organic Solvent System



Address:   A.K. Singh
Department of Chemistry (CCSIT), Teerthanker Mahaveer University, Moradabad, India
*Corresponding Author
DOI No: 10.5958/0974-4150.2019.00022.1

ABSTRACT:
The rate of solvolysis of ethyl benzoate was estimated volumetrically over the temperature range of 200c 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 ?H* and ?S* with increase in value of ?G* 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.
Cite:
A.K. Singh. Activation Parameter and Solvent effect on solvolysis of Ethyl benzoate in Aquo-organic Solvent System. Asian J. Research Chem. 2019; 12(2):99-102.
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