4. At a certain point in a spiral-wound membrane, the bulk conditions on the feed side are 1.8 wt\% NaCl,25C, and 1,000 psia, while bulk conditions on the permeate side are 0.05wt% NaCl,25C, and 50 psia. For this membrane the permeance values are 1.1105g/cm2s atm for H2O and 16106cm/s for the salt. If mass-transfer resistances are negligible, calculate the flux of water in Litre/ (m2.day) and the flux of salt in grams/( m2. day). Data: Atomic weights: Na23,Cl35.4 For seawater, an approximate expression for osmotic pressure is =1.12Tmi where p is in psia, T is in K, and mi is the summation of molarities of dissolved ions and nonionic species in the solution in mol/L. 1atm=14.7psia