Mass Transfer When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity. Temperature rises Pressure falls Temperature falls Pressure rises Temperature rises Pressure falls Temperature falls Pressure rises ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following same diameter columns gives lowest pressure drop per unit height? Bubble-cap column Packed column (stacked) Randomly packed column Sieve-plate column Bubble-cap column Packed column (stacked) Randomly packed column Sieve-plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In batch distillation with constant reflux, overhead product composition __________ with time. Increases May increase on decrease, depends on the system Decreases Does not vary Increases May increase on decrease, depends on the system Decreases Does not vary ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diameter of raschig rings used in packed tower in industry is normally around __________ inches. 2 18 12 8 2 18 12 8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Always lower than Same as Always higher than Dependent on the system; can be either lower or higher than Always lower than Same as Always higher than Dependent on the system; can be either lower or higher than 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 On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of an azeotrope The system comprises of partially mis-cible liquids The system comprises of miscible liquids On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of an azeotrope The system comprises of partially mis-cible liquids ANSWER DOWNLOAD EXAMIANS APP
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