1. As shown in the figure, a number of tanks are connected by pipes where, at steady state, the mass flow into and out of each tank must be equal. The rate of mass flow through each pipe is computed as the product of flow (Q) and concentration (c). As an example, the mass balance for the first tank can be written as, Q01 C01 Q31C3 = Q15C1 + Q12C1 Write mass balances for all the tanks and express the equations in matrix form. Then, use Matlab to solve for the concentrations in each tank. Q15 = 3 25 201 = 5 Q12=3 Col = 10 255 = 2 Qs4=2 Q24-1 244-11 Q23=1 24-8 Q = 1 203 = 8 C03 =20

Fig: 1