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 In which of the following unit operations, the selectivity is an important parameter? Distillation None of these Absorption Solvent extraction Distillation None of these Absorption Solvent extraction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second. > 10 1 1 to 5 5 to 10 > 10 1 1 to 5 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in Neither A nor B Degree of ideality of the solution Viscosity with concentration Both A & B Neither A nor B Degree of ideality of the solution Viscosity with concentration Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following same diameter columns gives lowest pressure drop per unit height? Sieve-plate column Packed column (stacked) Bubble-cap column Randomly packed column Sieve-plate column Packed column (stacked) Bubble-cap column Randomly packed column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Remains unaffected Increases And the heat required in reboiler decreases Decreases Remains unaffected Increases And the heat required in reboiler decreases Decreases ANSWER DOWNLOAD EXAMIANS APP
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