Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D K ∝ D2 K ∝ √D K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature of water cooled in cooling tower is always __________ temperature of entering air. Equal to the dry bulb More than the wet bulb Equal to the wet bulb Less than the wet bulb Equal to the dry bulb More than the wet bulb Equal to the wet bulb Less than the wet bulb ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Both A & B Gives lower pressure drop Provides poorer contact between the fluids Gives higher pressure drop Both A & B Gives lower pressure drop Provides poorer contact between the fluids Gives higher pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of L/mG ratio for economical absorption operation ranges from 2.5 to 3.5 0.8 to 1.2 1.25 to 2.0 0.5 to 0.8 2.5 to 3.5 0.8 to 1.2 1.25 to 2.0 0.5 to 0.8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Swenson-Walker crystalliser is a __________ unit Continuous Batch Cooling (adiabatic)-cum-evaporation Semi-batch Continuous Batch Cooling (adiabatic)-cum-evaporation Semi-batch ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the solvent dissolves very little of solute, then Solvent of low freezing point should be used Solvent of low latent heat of vaporisation should be used Large quantity of solvent is required to extract the solute Very small quantity of solvent is required Solvent of low freezing point should be used Solvent of low latent heat of vaporisation should be used Large quantity of solvent is required to extract the solute Very small quantity of solvent is required ANSWER DOWNLOAD EXAMIANS APP
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