The figure below shows conditions for the top tray of a distillation column. Determine the column diameter at 85% of flooding for a valve tray. Use a liquid density of 52 lb/ft and use the ideal gas law to obtain the vapor density. Use a surface tension of 30 dyne/cm and assume a tray spacing of 24 inches. Make any other necessary assumptions. 335.6 lbmol/h benzene 0.9 lbmol/h monochlorobenzene 274.0 lbmol/h benzene 0.7 lbmol/h monochlorobenzene 23 psia 204 F Top tray