a. Estimate the heat and work flows needed to reversibly and isothermally separate an equimolar mixture of two species into its pure components if the excess Gibbs energy for the mixture is given by Gex=Ax1x2 Where A is independent of temperature. b. How does the temperature at which W=0 compare with the upper consolute temperature of the mixture? c. How would the answers to parts (a) and (b) change if A were a function of temperature