Two volatile liquids are mixed at 20oC (293.15 K). It's made up of 0.50 A and 0.50 B, whose latent heats of vap. are 40 kJ/mol and 70 kJ/mol, respectively. Furthermore, the boiling point of the mixture is 85oC and the heat capacity is given as 0.10 kJ/mol. If this mixture enters a continuous distillation column, what will be the slope of the q-line? Show complete and neat solutions.