270K~420K, 200MPaまでの液相域におけるエタノール水溶液の状態式の作成
1998
A new equation of state for aqueous ethanol mixtures is proposed in the temperature range from 270 K to 420 K at pressures up to 200 MPa. The equation is expressed in a form of excess molar Gibbs free energy as a function of temperature, pressure and mole fraction of ethanol. The equation has been formulated based on the experimental data of excess molar volume measured by the present authors. Comparisons with the experimental data are reported in detail. Behaviors of excess molar Gibbs free energy and excess molar enthalpy as a function of mole fraction of ethanol are discussed in a wide range of temperatures and pressures.
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