4. Highly volatile components may be easily separated from other components by flash separation. In flash separation, the pressure of a heated liquid stream is rapidly reduced. A vapor containing the highly volatile component exits the top of the vessel, and the remaining liquid exits the bottom of the vessel. A reactor effluent comprised of 435 lbmol/h acetone (A), 580 lbmol/h acetonitrile (AN), 319 lbmol/h nitromethane (N), and 116 lbmol/h acetic acid (AA) enters a flash separation unit, which is used to reduce the amount of acetone in the liquid stream. 16.1% of entering acetone leaves in the liquid stream and the mole ratio of vapor product to liquid product leaving the flash evaporator is 2. The vapor stream leaving the flash separator is 4.2 mol.-% acetic acid and 17.0 mol.-% nitromethane. A diagram of the process is shown below. Calculate the molar flow rate (in Ibmol/h) and the composition of the liquid stream that exits the flash drum. Yu .ru Y+0.170 [Yu -0.042 2. Flash 12. = 435 lbmol/h 580 lbmoth 319 Ibmol/h hui = 116 lbmoth 3 X XX X