Mass Transfer Tower diameter may be decreased by Increasing the vapour flow rate Increasing the liquid flow rate Use of increased tray spacing Using higher reflux ratio Increasing the vapour flow rate Increasing the liquid flow rate Use of increased tray spacing Using higher reflux ratio 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 Positive deviation from Raoult's law means a mixture whose total pressure is Less than the sum of the vapour pressure of the components None of these Greater than that computed for ideality Less than that computed for ideality Less than the sum of the vapour pressure of the components None of these Greater than that computed for ideality Less than that computed for ideality ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Most important factor to be considered in the selection of packings for absorbers is the __________ of packing. Size Durability Porosity Cost Size Durability Porosity Cost ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Inside the distillation columns, the Driving force for the liquid flow is its weight Vapors are not always at their dew points Highest temperatures is near the feed plate All of these Driving force for the liquid flow is its weight Vapors are not always at their dew points Highest temperatures is near the feed plate All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is 0.175 0.4 0.25 0.2 0.175 0.4 0.25 0.2 ANSWER DOWNLOAD EXAMIANS APP
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