Mass Transfer The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³) 1000 100 500 50 1000 100 500 50 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 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 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 For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns). > 500 43835 200-300 22190 > 500 43835 200-300 22190 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is S = 1 S = ∞ S > 1 S < 1 S = 1 S = ∞ S > 1 S < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. Either A or B; depends on the solid Equal to Less than More than Either A or B; depends on the solid Equal to Less than More than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer All moisture in a non-hygroscopic material is the __________ moisture. Unbound Equilibrium Free Bound Unbound Equilibrium Free Bound ANSWER DOWNLOAD EXAMIANS APP
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