Crystallization by cooling and evaporation. Five thousand lb/h of a saturated aqueous solution of (NH4)2SO4 at 80°C is cooled to 30°C. At equilibrium, what is the amount of crystals formed in lb/h? If during the cooling process, 50% of the water is evaporated, what amount of crystals is formed in lb/h? 17.9.

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Distillation

Distillation is a process/technique to separate more volatile components from less volatile components using the principle of relative volatility. In chemical engineering, distillation is one of the most common and important topics that is involved in almost every industry and process.