Problem 1: 8.9 Five reactors linked by pipes are shown in Fig. P8.9. The rate of mass flow through each pipe is computed as the product of flow(Q) and concentration (C). At steady state, the mass flow into and out of each reactor must be equal. For example, for the first reactor, a mass balance can be written as Qarco + 23103 = 215-1 + 1291 Write mass balances for the remaining reactor and express the equations in the matrix form. Use gauss elimination for the concentrations in each reactor. lus-5 Bi-2 12 - - 20 Qas Q-6 Q-7 - 50 FIGURE P8.9 2