mass transfer

1000lbmol/hr mixture of toluene and benzene is to be distilled in a plate column at atmospheric pressure. The feed, saturated vapor, is to be fed to the optimum plate. The distillate is to contain 98mol% benzene, while the bottoms is to contain 2 mol\% benzene. Using the Panchen Savarit method and data given below, calculate the following parameters: a) The minimum reflux ratio (Rmin). b) The number of theoretical plates (N) needed and the duties of reboiler (QR) in Btw/hr and condenser (QC) in Btu/hr using a reflux ratio (DL) of 0.80 c) To which actual plate the feed should be sent assuming an overall plate efficiencv of 65%