Mass Transfer Mechanism of moisture removal in case of freeze drying of food stuff is by Sublimation Evaporation Dehydration Adsorption Sublimation Evaporation Dehydration Adsorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. > 100 < 100 100 None of these > 100 < 100 100 None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is 1 < 1 > 1 1 < 1 > 1 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 ? Interfacial Both liquid and gas side Gas side Liquid side Interfacial Both liquid and gas side Gas side Liquid side ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer HETP is numerically equal to HTU, only when the operating line And equilibrium lines are parallel Lies below the equilibrium line Lies above the equilibrium line Is far from the equilibrium line And equilibrium lines are parallel Lies below the equilibrium line Lies above the equilibrium line Is far from the equilibrium line ANSWER DOWNLOAD EXAMIANS APP
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