1000 kmol of an equimolar mixture of benzene and toluene is distilled in a multistage batch distillation unit. 92 % of the benzene is in the top product (distillate). the top product has a benzene mole fraction of 0.95. 1. 2. 3. 4. describe the chemical process using a labeled flowchart, and demonstrate that the stream is completely labeled? demonstrate that you have enough information to calculate all unknown variables on the completely labeled flow chart. in case you have all the required information, calculate the quantities of top and bottom products and the composition of the bottom product. in case you don't have enough information, suggest a reasonable calculation basis.