Mass Transfer CO₂ can be absorbed by Cold Ca(OH)₂ Hot cupric oxide Alumina Heated charcoal Cold Ca(OH)₂ Hot cupric oxide Alumina Heated charcoal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is an undesirable characteristic for the solvent used in gas absorption? None of these Low viscosity High gas solubility Low vapor pressure None of these Low viscosity High gas solubility Low vapor pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On addition of solute in the solvent, the __________ of the solution decreases. Vapour pressure Boiling point Both B and C Freezing point Vapour pressure Boiling point Both B and C Freezing point 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 ? Liquid side Interfacial Both liquid and gas side Gas side Liquid side Interfacial Both liquid and gas side Gas side ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For water-ethanol system, the minimum reflux ratio Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is the optimum reflux ratio Is computed from the intercept of the operating line Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is the optimum reflux ratio Is computed from the intercept of the operating line 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 None of these < 100 100 > 100 None of these < 100 100 ANSWER DOWNLOAD EXAMIANS APP
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