Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is D/a D/2a Dependent on the Reynolds number Proportional to √D D/a D/2a Dependent on the Reynolds number Proportional to √D 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 94 min 71 min 15 min 51 min 94 min 71 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption accompanied with chemical reaction is exemplified by the absorption of Benzol present in coke oven gas by wash oil All of these SO₂ in alkaline solution Ammonia in water Benzol present in coke oven gas by wash oil All of these SO₂ in alkaline solution Ammonia in water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line) ML/G LG/m L/mG G/mL ML/G LG/m L/mG G/mL ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation. Azerotropic None of these Continuous Steam Azerotropic None of these Continuous Steam ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The fixed cost of a distillation column at minimum reflux ratio is Minimum Infinite None of these Optimum Minimum Infinite None of these Optimum ANSWER DOWNLOAD EXAMIANS APP
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