Enthalpy of mixing and heat of vaporization of ethyl acetate with benzene and toluene at 298.15 k and 308.15 k

Brazilian Journal of Chemical Engineering

K. L. Shivabasappa²  P. Nirguna Babu²  Y. Jagannadha Rao¹ 

[1] ,Siddaganga Institute of Technology Department of Chemical Engineering Tumkur,India

关键词: Enthalpy of Mixing;    Heats of Vaporization;    Ethyl Acetate;    Benzene and Toluene;   

DOI  :  10.1590/S0104-66322008000100017

来源: SciELO

【 摘 要 】

The present work was carried out in two phases. First, enthalpy of mixing was measured and then the heat of vaporization for the same mixtures was obtained. The data are useful in the design of separation equipments. From the various designs available for the experimental determination of enthalpy of mixing, and heat of vaporization, the apparatus was selected, modified and constructed. The apparatus of enthalpy of mixing was tested with a known system Benzene - i-Butyl Alcohol and the data obtained was in very good agreement with literature values. Experiments were then conducted for mixtures of Ethyl Acetate with Benzene and Toluene. The experimental data was fitted to the standard correlations and the constants were evaluated. Heat of vaporization data were obtained from a static apparatus and tested for accuracy by conducting experiments with a known system Benzene - n-Hexane and the data obtained were found to be in agreement with literature values. Experiments were then conducted to measure heat of vaporization for the mixtures of Ethyl Acetate with Benzene and Toluene. Using experimental data of enthalpy of mixing from the first phase, and heat capacity data, the heat of vaporization were calculated.

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