Q6-A mixture containing 42 wt% benzene (B) and 58 wt% toluene (T) is fed to a distillation column at a flowrate of 100 kg/min. The product stream leaving the top of the column (the overhead product)...

Extracted text: Q6-A mixture containing 42 wt% benzene (B) and 58 wt% toluene (T) is fed to a distillation column at a flowrate of 100 kg/min. The product stream leaving the top of the column (the overhead product) contains 90 wt% benzene, and 85 wt% of the total benzene fed to the column exits in this overhead product stream. Calculate the mass flowrate and mass composition of the product stream leaving the bottom of the column. Calculate the volumetric flowrate of the overhead product, assuming that it exits the distillation column as a vapour stream at 82 °C and 1 atm (abs). Physical Property Data (S.G.=specific gravity) from Table B1: • Benzene S.G.=0.879 MW=78.11 g/mol • Toluene S.G.=0.866 MW=92.13 g/mol • Water density 1.00 kg/L MW=18.02 g/mol R = 0.08206 L-atm/(mol-K)