Mass Transfer With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature) Remains unchanged Decreases Decreases linearly Increases Remains unchanged Decreases Decreases linearly Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D D2 D0.5 1/D D D2 D0.5 1/D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Provides poorer contact between the fluids Gives higher pressure drop Gives lower pressure drop Both A & B Provides poorer contact between the fluids Gives higher pressure drop Gives lower pressure drop Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following operations does not involve leaching? Dissolving gold from ores Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Removing nicotine from its water solution by kerosene Dissolving gold from ores Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Removing nicotine from its water solution by kerosene ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Very tall packed towers are divided into series of beds to Reduce the overall pressure drop Avoid channelling Avoid flooding Reduce liquid hold-up Reduce the overall pressure drop Avoid channelling Avoid flooding Reduce liquid hold-up ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency May increase or decrease ; depends on individual design Decreases Increases Remains same May increase or decrease ; depends on individual design Decreases Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
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