Problem:
A binary mixture of benzene and toluene containing 40% of benzene is to
be distilled at 1 atm pressure to recover 95% of the benzene. Estimate
the molal percent of mixture to be distilled and the composition of the
distillate obtained if distillation is carried out by Differential
distillation, collecting all the distillate together.
The average relative volatility of benzene to toluene is 2.5.
