Mass Transfer The fixed cost of a distillation column at minimum reflux ratio is Minimum Optimum Infinite None of these Minimum Optimum Infinite None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Neither A nor B Ratio of the insoluble to solution is constant Both A & B Solids are drained to the same extent Neither A nor B Ratio of the insoluble to solution is constant Both A & B Solids are drained to the same extent 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 0.2 0.25 0.4 0.175 0.2 0.25 0.4 0.175 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate period, the rate of drying decreases with the Both A & B Decrease in air temperature Neither A nor B Increase in air humidity Both A & B Decrease in air temperature Neither A nor B Increase in air humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low Liquid entrainment should be severe Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low Liquid entrainment should be severe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weeping in a distillation column Results due to very high gas velocity Results due to very low gas velocity Increases tray efficiency Provides large interfacial surface for mass transfer Results due to very high gas velocity Results due to very low gas velocity Increases tray efficiency Provides large interfacial surface for mass transfer ANSWER DOWNLOAD EXAMIANS APP
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