Mass Transfer Molecular diffusivity of a liquid May increase or decrease with temperature Decreases with temperature Is independent of temperature Increases with temperature May increase or decrease with temperature Decreases with temperature Is independent of temperature Increases with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is 1 10 100 5 1 10 100 5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Hatta number is important in Gas absorption with chemical reaction Multicomponent distillation Binary distillation Gas absorption without chemical reaction Gas absorption with chemical reaction Multicomponent distillation Binary distillation Gas absorption without chemical reaction 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 miscible liquids The system comprises of partially mis-cible 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 miscible liquids The system comprises of partially mis-cible liquids The system comprises of an azeotrope On heating, a vapor phase will appear ; while on cooling, a solid phase will appear ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are regenerated by heating to __________ °C. < 150 200-330 > 500 > 1000 < 150 200-330 > 500 > 1000 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of a desorber (stripper), the Temperature always increases Temperature remains unaffected Operating line always lies above the equilibrium curve Operating line always lies below the equilibrium curve Temperature always increases Temperature remains unaffected Operating line always lies above the equilibrium curve Operating line always lies below the equilibrium curve ANSWER DOWNLOAD EXAMIANS APP
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