Mass Transfer At what percentage (by volume) of alcohol composition, it forms an azeotrope with water? 95 99 91.5 90 95 99 91.5 90 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an absorber, the operating Line always lies above the equilibrium curve Velocity is more than the loading velocity Line can be either above or below the equilibrium curve Line always lies below the equilibrium curve Line always lies above the equilibrium curve Velocity is more than the loading velocity Line can be either above or below the equilibrium curve Line always lies below the equilibrium curve ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that The system comprises of an azeotrope On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of partially mis-cible liquids The system comprises of miscible liquids The system comprises of an azeotrope On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of partially mis-cible liquids The system comprises of miscible liquids ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged Less number of trays are required More number of trays are required but the residue composition remains unchanged More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged Less number of trays are required More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of Hâ‚‚/ky.Cz is around 0.24 1 0.6 0.72 0.24 1 0.6 0.72 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using Evaporation Absorption Liquid extraction Distillation Evaporation Absorption Liquid extraction Distillation ANSWER DOWNLOAD EXAMIANS APP
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