3. The triple-effect evaporation is shown as follows: The saturate steam temperature, Ts is 300F and the boiling temperature of the solution in evaporator #3,T3, is 90F. The boiling point elevations of the solutions in evaporator #1,#2 and #3 are 38,52 and 55F, respectively. The overall heat transfer coefficients (Btu/ ft2F) for the evaporator #1,#2 and #3 are 6000,2000 and 1000 , respectively. Assume that the heat transfer areas for all the evaporators are the same, (a) find T1,P1,X1,X2 and X3.(15%) (b) If the feed is 5000lb/hr of 10%NaOH solution with the feed temperature 100F, find the amount of steam provided. (15%) (c) Find the heat transfer area in the evaporator #1(5%)