Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Ratio of the insoluble to solution is constant Both A & B Solids are drained to the same extent Neither A nor B Ratio of the insoluble to solution is constant Both A & B Solids are drained to the same extent Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases at atmospheric conditions is about 10-1 cm²/sec 10-4 cm²/seC₂ 10-9 cm/sec 10-3 sec/cm 10-1 cm²/sec 10-4 cm²/seC₂ 10-9 cm/sec 10-3 sec/cm 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 In case of an absorber, the operating Line can be either above or below the equilibrium curve Velocity is more than the loading velocity Line always lies above the equilibrium curve Line always lies below the equilibrium curve Line can be either above or below the equilibrium curve Velocity is more than the loading velocity Line always lies above the equilibrium curve Line always lies below the equilibrium curve ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio increases, the slope of the operating line for rectifying section Increases Decreases Remains constant Data insufficient, cannot be predicted Increases Decreases Remains constant Data insufficient, cannot be predicted ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S present in naphtha reformed gas is removed by absorbing with Vacuum gas oil HCl K₂CO₃ Ethanolamine Vacuum gas oil HCl K₂CO₃ Ethanolamine ANSWER DOWNLOAD EXAMIANS APP
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