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 Proportional to √D D/a D/2a Dependent on the Reynolds number Proportional to √D D/a D/2a Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency Increases May increase or decrease ; depends on individual design Decreases Remains same Increases May increase or decrease ; depends on individual design Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ? Gas side Liquid side Both liquid and gas side Interfacial Gas side Liquid side Both liquid and gas side Interfacial ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of packed towers for distillation is generally limited to the Multicomponent distillation Vacuum distillation High pressure operation Small sizes Multicomponent distillation Vacuum distillation High pressure operation Small sizes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Rotary dryers cannot handle __________ materials. Grannular Sticky Dry Free flowing Grannular Sticky Dry Free flowing ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture. Wet bulb Dew point None of these Dry bulb Wet bulb Dew point None of these Dry bulb ANSWER DOWNLOAD EXAMIANS APP
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