Question

What is the radtio of sum of volume of two hamishpher of radius 1 cm each to the volume of a sphere of radius 2cm

Answer 1

Answer:

a plate column equipped with a total condenser and a kettle type reboiler is used to separate 100 kmol/h of a benzene-toluene solution containing 50 mol% benzene into a distillate into a distillate product containing 95 mol% benzene and in bottom product containing 5mol% benzene. the column is operated at 101.3kpa. the feed is partially vaporized and in one-third vapor and two-thirds liquid. determine the minimum number of plates if reflux ratio is 2.39