A well-insulated container has 1.0 kg ice and 1.0 kg liquid water at 0°C in equilibrium. 1.0 kg of liquid ethanol at 0°C is added to the system. At equilibrium, what is the fi nal state of the system?
A phase diagram for the binary mixture is shown in the following fi gure. The enthalpy of fusion for water is 6.01 kJ/mol and for ethanol is 5.02 kJ/mol. The enthalpy of mixing between water (1) and ethanol (2) has been reported to be fi t by:

Transcribed Image Text:

Ahmix = R x1x[-190.0 + 214.7(x2-x1) 419.4(x-x) +383.3(x-x) 235.4(x2-x1)4] [K]