Experimental Results of the Dynamic Characteristics of Methanol- and Ethanol-Water Mixtures at Temperature Range of 35 - 70oc Using an Innovative Technique by Physical Method

Abstract

The analysis of some thermodynamic properties of liquid mixtures was reported. The properties of methanol-water mixture, ethanol-water mixtures such as; density, viscosity, activation energy, enthalpy and entropy were evaluated. These parameters were investigated at different temperatures and constant atmospheric pressure using an innovative technique designed and constructed for the purpose of analysis of water-mixtures in solutions. The activation energy of water, methanol, ethanol, methanol-water mixture and ethanol-water mixture were 14.49±0.17, 9.05±0.11, 14.92±0.21, 12.17±0.21 and 14.73±0.09 kJ.mol^−1 respectively. The corresponding enthalpy and entropy of the liquids were also calculated from the experimentally determined parameters.