Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Wetted wall columns Packed towers Plate towers Spray towers Wetted wall columns Packed towers Plate towers Spray towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as Ri = Re Ri = (1 - Re)/Re Ri = Re/(1 + Re) Ri = Re/(1 - Re) Ri = Re Ri = (1 - Re)/Re Ri = Re/(1 + Re) Ri = Re/(1 - Re) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 3.97 0.24 1 600 3.97 0.24 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the solvent dissolves very little of solute, then Very small quantity of solvent is required Solvent of low freezing point should be used Large quantity of solvent is required to extract the solute Solvent of low latent heat of vaporisation should be used Very small quantity of solvent is required Solvent of low freezing point should be used Large quantity of solvent is required to extract the solute Solvent of low latent heat of vaporisation should be used ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system) Increases Remains unaffected Increases Linearly Decreases Increases Remains unaffected Increases Linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Physical absorption is Accompanied by evolution of heat An irreversible phenomenon A reversible phenomenon Both B & C Accompanied by evolution of heat An irreversible phenomenon A reversible phenomenon Both B & C ANSWER DOWNLOAD EXAMIANS APP
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