A total of 6,000 lb/h of a liquid solution of 40 wt% benzene in naphthalene at 50^οC is cooled to 15^οC. Use Figure 4.22 to obtain the weight of crystals and the flow rate and composition of mother liquor. Are the crystals benzene or naphthalene?

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Temperature, °C 80 70 60 50 40 20 10 O -10 Homogeneous solution Solid C6H6 + solution 10 H F G Solid C₁0Hg + solution B E Mixture solid CeHg and solid C10Hg ||| 1 1 20 30 40 50 60 70 80 90 100 Weight percent C10Hg in solution Figure 4.22 Solubility of naphthalene in benzene.