You can assume constant molar flow rates 2. A distillation column with eight equilibrium stages and a partial reboiler and total condenser will produce a distillate that is 95% mol benzene from a feed that is 50% mol benzene. The relative volatility between benzene and the heavy compound is 2.5. a. When the feed is added in the 5th stage as a saturated liquid, find the bottoms composition when the reflux ratio is 1.75 times the minimum. b. When the feed is a saturated vapor and the reflux ratio is 1.42 times the minimum, in what stage does the feed need to be added for optimal number of stages? How many stages are needed

A meat processing factory’s raw effluent has a five day BOD at 20oC of 1760 mg/l. If the k value is 0.15/day determine the BOD at two and four days at 20oC

This is a picture of a 10-mL graduated cylinder. The value for 'x' says 3 mL and the value for 'y' says a value 1 mL higher than 3. Record the value with proper estimation technique.

6.16. Using a colo below 01 mo