Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 3 to 4 1.2 to 1.5 5 2.5 to 3 3 to 4 1.2 to 1.5 5 2.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The most economical range of absorption factor is 5 to 10 2 to 2.5 1.25 to 2 2.5 to 3 5 to 10 2 to 2.5 1.25 to 2 2.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Solvent used in extractive distillation Does not alter the relative volatility of the original components Is of low volatility Forms a low boiling azeotrope Forms a high boiling azeotrope Does not alter the relative volatility of the original components Is of low volatility Forms a low boiling azeotrope Forms a high boiling azeotrope ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate efficiency Increases due to foaming Is a function of the mass transfer between liquid and vapour Increases due to weeping and dumping of liquid Increases due to liquid entrainment Increases due to foaming Is a function of the mass transfer between liquid and vapour Increases due to weeping and dumping of liquid Increases due to liquid entrainment ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is 0.175 0.4 0.25 0.2 0.175 0.4 0.25 0.2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The most common packing used in industrial operations is __________ rings. Single spiral Cross-partition Raschig Lessing Single spiral Cross-partition Raschig Lessing ANSWER DOWNLOAD EXAMIANS APP
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