Mass Transfer The cooling effect in a cooling tower can not be increased by None of these Reducing the humidity of entering air Lowering the barometric pressure Increasing the air velocity over the wet surfaces None of these Reducing the humidity of entering air Lowering the barometric pressure Increasing the air velocity over the wet surfaces ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer High pressure at the bottom of a distillation tower handling heat sensitive materials results in Very efficient operation Increased relative volatility Erosion of the tower Thermal decomposition of bottoms Very efficient operation Increased relative volatility Erosion of the tower Thermal decomposition of bottoms ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Increases tray efficiency Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In saturated gas, the Vapour is in equilibrium with the liquid at the gas temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Partial pressure of vapour equals the vapour pressure of the liquid at room temperature Vapour is in equilibrium with the liquid at the gas temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Partial pressure of vapour equals the vapour pressure of the liquid at room temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be 2 metres above the ground 5 metres above ground 10 metres above ground At ground level 2 metres above the ground 5 metres above ground 10 metres above ground At ground level ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer McCabe-Thiele method Uses weight fractions to express liquid and vapour composition Uses molal units for material and energy balance Can use any type of units Is more accurate than Ponchan-Savarit method Uses weight fractions to express liquid and vapour composition Uses molal units for material and energy balance Can use any type of units Is more accurate than Ponchan-Savarit method ANSWER DOWNLOAD EXAMIANS APP
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