Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) 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 At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. Is greater than Cannot be predicted as data are insufficient Is same as Is lower than Is greater than Cannot be predicted as data are insufficient Is same as Is lower than 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 Liquid side Both liquid and gas side Gas side Interfacial Liquid side Both liquid and gas side Gas side ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For gas absorption, low viscosity solvents are preferred, because of their Rapid absorption rates All of these Better flow characteristics Low pumping pressure drop Rapid absorption rates All of these Better flow characteristics Low pumping pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) √T T⁴ T T² √T T⁴ T T² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske equation determines the Height of the distillation column Minimum number of theoretical plates Optimum reflux ratio Maximum number of ideal plates Height of the distillation column Minimum number of theoretical plates Optimum reflux ratio Maximum number of ideal plates ANSWER DOWNLOAD EXAMIANS APP
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