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Ethanol - water mixture is to be distilled at 1 atm using a batch distillation column, which has 8 trays plus a reboiler. System is

Ethanol-water mixture is to be distilled at 1atm using a batch distillation column, which has 8
trays plus a reboiler. System is operated under total reflux to reach equilibrium. Afterwards,
samples are taken from the reboiler and the distillate within 30 minutes time interval, starting from
time 0. Pycnometer was calibrated as 10.540mL and the experimental data are tabulated below.
(a)(20 pts) Derive the governing equation for the operating line in an enriching section in a
distillation column.
(b) pts ) Determine theoretical number of trays and overall tray efficiency at the end of the
operation if reflux ratio is 5. Use necessary tables provided on the next page. Draw the stages on
the equilibrium data provided.
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