Mass Transfer Mechanism of moisture removal in case of freeze drying of food stuff is by Adsorption Evaporation Sublimation Dehydration Adsorption Evaporation Sublimation Dehydration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the None of these Thermal diffusivity to the mass diffusivity Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity None of these Thermal diffusivity to the mass diffusivity Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is 4.605 9.21 100 0.001 4.605 9.21 100 0.001 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Heating only Humidification only Both heating and humidification Evaporative cooling Heating only Humidification only Both heating and humidification Evaporative cooling ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate efficiency Is a function of the mass transfer between liquid and vapour Increases due to weeping and dumping of liquid Increases due to foaming Increases due to liquid entrainment Is a function of the mass transfer between liquid and vapour Increases due to weeping and dumping of liquid Increases due to foaming Increases due to liquid entrainment ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is an undesirable property in a tower packing? Large surface per unit volume Low weight per unit volume Large weight of liquid retained Large free cross-section Large surface per unit volume Low weight per unit volume Large weight of liquid retained Large free cross-section ANSWER DOWNLOAD EXAMIANS APP
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