Mass Transfer Which of the following is an undesirable property in a tower packing? Large free cross-section Low weight per unit volume Large surface per unit volume Large weight of liquid retained Large free cross-section Low weight per unit volume Large surface per unit volume Large weight of liquid retained ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of miscible liquids The system comprises of partially mis-cible liquids The system comprises of an azeotrope On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of miscible liquids The system comprises of partially mis-cible liquids The system comprises of an azeotrope ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In extractive distillation, solvent is Added to alter the relative volatility of the mixture Of high viscosity to give high tray efficiency Present in overhead stream Of high volatility Added to alter the relative volatility of the mixture Of high viscosity to give high tray efficiency Present in overhead stream Of high volatility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as 1/D D0.5 D1.5 D 1/D D0.5 D1.5 D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is Dependent on the molecular volume & molecular weight of components All of these Inversely proportional to 'P' Directly proportional to 'T1.5' Dependent on the molecular volume & molecular weight of components All of these Inversely proportional to 'P' Directly proportional to 'T1.5' ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flights in a rotary dryer are provided to Increase the residence time of the solid Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas None of these Increase the residence time of the solid Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas None of these ANSWER DOWNLOAD EXAMIANS APP
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