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The feed to a series of distillation columns is 100kmol/h,80mole% ethanol, 20 mole \% benzene. The azeotrope is at 85 mole % ethanol at high pressure and at 70 mole \% at low pressure. Ethanol is more volatile at mole fractions below the azeotrope. The azeotropes are low boilers. The low pressure column is first. a. Sketch the Txyl diagram. b. Draw this series of distillation columns and give the flowrates and compositions of all streams. c. For what range of feed ethanol mole fractions will a series with the low pressure column first work? For high pressure column first? d. Redo parts a and b if the azeotropes are high boilers and ethanol is more volatile below the azeotrope instead