2000kg/h of 25% by weight solution of NaNO 3 is concentrated by evaporation until saturation at 100"C. The solution is cooled to 20*C and the NaNO 3 crystals are filtered, leaving 0.1 lb of solution/lb of crystals attached that is deposited on the crystals. The solubility of NaNO 3 at 100*C is 1.76 kg of salt/kg H 2 0 and at 20"C is 0.88kg of salike H 2 O. If the filtered solution is recirculated to the evaporator, Calculate; Flow of evaporated water to achieve saturation at 100"C, total flow of NaNO 3 obtained and recycle flow.