One thousand kilograms per hour of a mixture of benzene (B) and Toluene (T) containing 60%
benzene by mass is separated by distillation into two fractions. The mass flowrate of the
benzene (B) in the top stream is 500 kg (B) /h and that of toluene in the bottom stream is 485 kg
(T) / h. The unit operates at steady state.
3.1.1. Draw a schematic diagram showing all the relevant streams in the distillation unit. (8)
3.1.2. Write the basis for calculation.