i answered part a)

Please answer b), c), d) and e) showing clear working

4. A researcher proposes a process that produces 1% ethanol by volume. a. Using the graph presented in the notes, how much steam (kg steam/gal anhydrous ethanol) is required to distill the ethanol to purity? (Note: Use the practical" curve not the "theoretical" curve.) - 26.5 b. Based on the density of anhydrous ethanol, express the distillation energy requirement as kg steam/kg anhydrous ethanol, c. Assuming the steam has a latent heat of 2000 kJ/kg. how much energy (kJ/kg anhydrous ethanol) is required? d. Express the distillation energy requirement as a fraction of the lower heat of combustion for anhydrous ethanol, i.e., EJ distillation energy/kJ combustion energy e. If this process is used to make biofuels, briefly describe your perspective on the practicality of this approach