1) Using the following data (International Critical Tables, Vol. 3 and 5, McGraw-Hill, New York, 1929) calculate (a) the partial molar volumes and (b) the partial molar enthalpies of ethanol and water in ethanol- water mixtures. Also plot the partial molar volumes and enthalpies of the two components as well as the volume and enthalpy changes of mixing as a function of ethanol mole fraction.