At 101 kPa, a rectification column is fed 100 kmol/h of a mixture of 50 mol% benzene and 50 mol% toluene.

At its boiling point, the feed is a saturated liquid.

The distillate must contain 90 mol% benzene, whereas the bottoms must contain 10 mol% benzene.

4.52:1 is the reflux ratio.

Using the McCabe-Thiele method, calculate the k-mol/h of distillate, k-mol/r of bottoms, and the number of theoretical trays required.