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
Mass Transfer Free flowing granular materials can be best dried in a __________ drier. Rotary Freeze Drun Cylinder Rotary Freeze Drun Cylinder ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 15 min 51 min 71 min 94 min 15 min 51 min 71 min 94 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer. None of these Spray Indirect tray Freeze None of these Spray Indirect tray Freeze ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.152 0.048 0.079 0.122 0.152 0.048 0.079 0.122 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in Separation of a binary mixture by distillation All liquid-liquid diffusion systems All of these Absorption of NH₃ from air by water Separation of a binary mixture by distillation All liquid-liquid diffusion systems All of these Absorption of NH₃ from air by water ANSWER DOWNLOAD EXAMIANS APP
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