Mass Transfer In extractive distillation, solvent is Of high viscosity to give high tray efficiency Of high volatility Added to alter the relative volatility of the mixture Present in overhead stream Of high viscosity to give high tray efficiency Of high volatility Added to alter the relative volatility of the mixture Present in overhead stream 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) 6.89 8.25 8.89 10 6.89 8.25 8.89 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm. None of these Benzene-ethyl alcohol Acetone chloroform Ethyl alcohol-water None of these Benzene-ethyl alcohol Acetone chloroform Ethyl alcohol-water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Bubble cap column Wetted wall column Randomly packed column Sieve plate column Bubble cap column Wetted wall column Randomly packed column Sieve plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant. Wet bulb temperature None of these Partial pressure of water vapor Relative humidity Wet bulb temperature None of these Partial pressure of water vapor Relative humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 51 min 15 min 71 min 94 min 51 min 15 min 71 min 94 min ANSWER DOWNLOAD EXAMIANS APP
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