Figure E2.22 (a) Derive the mass balances for each of the four tanks, and express them as simple equations (four total) with one derivative term on the left hand side. (b) For the case of 1=0.5 and 2=0.5 (i.e., equal splitting of each stream), what is the resulting form of the equations? Can the levels be solved independently? Can the flow rates be used independently to adjust the heights in the tanks? (c) For the extreme case of 1=0 and 2=0, whatis the resulting form of the equations? Does this make sense in terms of the process schematic