Seawater containing 3.50wt% salt passes through a series of 8 evaporators. Roughly equal quantities of water are vaporized in each of the 8 units and then condensed and combined to obtain a product stream of fresh water. The brine leaving each evaporator but the 8th is fed to the next evaporator. The brine leaving the 8th evaporator contains 5.00 wt\% salt. It is desired to produce 2104L/h of fresh water. x Use two of the three balances available. How much seawater must be fed to the process? What is the fractional yield of fresh water from the process (kgH2O recovered/kg H2O in process feed)