Q1. [7 points). Two evaporators A and B are used to concentrate a 15% NaCl, 30% KCI aqueous solution to an aqueous NaCI, KCl solution containing 10% water, F3 If the ratio = 1.333, then find the following: F5 a. the number of degrees of freedom for the process, b. the composition of streams Fs, c. the ratio of F2 to Fx and the ratio of Fs to F1, and d. the composition of streams F3. F2 F4 F F3 Fs Evaporator A Evaporator B NaCl 15% KCI 30% H2O 55% Naci KCI H2O 10%