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 > 1 S < 1 S = ∞ S = 1 S > 1 S < 1 S = ∞ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fractional solvent extraction Results in low interfacial tension None of the listed here Employs only one solvent Employs two solvents Results in low interfacial tension None of the listed here Employs only one solvent Employs two solvents ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 10 8.89 6.89 8.25 10 8.89 6.89 8.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. None of these 100 > 100 < 100 None of these 100 > 100 < 100 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At minimum reflux ratio for a given separation Minimum number of the theoretical plates is required Number of plates is infinity Number of plates is zero Separation is most efficient Minimum number of the theoretical plates is required Number of plates is infinity Number of plates is zero Separation is most efficient ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Wetted wall tower Perforated tray tower Bubble cap tower Grid tray tower Wetted wall tower Perforated tray tower Bubble cap tower Grid tray tower ANSWER DOWNLOAD EXAMIANS APP
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