\(500 \mathrm{~kg} / \mathrm{h}\) of a \(30 \mathrm{wt} \%\) pyridine, \(70 \mathrm{wt} \%\) water feed is extracted with \(300 \mathrm{~kg} / \mathrm{h}\) of pure chlorobenzene at \(1 \mathrm{~atm}\) and \(25^{\circ} \mathrm{C}\). Assume chlorobenzene and water are immiscible and solve with ratio units. A single mixer-settler is used. Equilibrium data are Table 13-5.

a. Find outlet extract and raffinate total flow rates and weight fractions.

b. Compare answer to part a with answer to the same problem but without assuming water and chlorobenzene are immiscible.

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TABLE 13-5. Equilibrium data for pyridine, water, chlorobenzene at 25C and 1 atm Extract Phase Raffinate Phase Wt frac pyridine, Wt frac Wt frac pyridine, Wt frac water water 0 0.0005 0 0.9992 0.1105 0.0067 0.0502 0.9482 0.1895 0.0115 0.1105 0.8871 0.2410 0.0162 0.1890 0.8072 0.2860 0.0225 0.2550 0.7392 0.3155 0.0287 0.3610 0.6205 0.3505 0.0395 0.4495 0.5087 0.4060 0.0640 0.5320 0.3790 0.490 0.132 0.490 0.132