Mass Transfer If f is defined as above, then which of the following applies to a feed at dew point? F < 1 0 < f < 1 F > 1 F = 1 F < 1 0 < f < 1 F > 1 F = 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption (chemical adsorption) is An irreversible phenomenon Same as "Van der Waals" adsorption Characterised by adsorption of heat A reversible phenomenon An irreversible phenomenon Same as "Van der Waals" adsorption Characterised by adsorption of heat A reversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
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) 50 500 100 1000 50 500 100 1000 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tower diameter may be decreased by Increasing the vapour flow rate Using higher reflux ratio Use of increased tray spacing Increasing the liquid flow rate Increasing the vapour flow rate Using higher reflux ratio Use of increased tray spacing Increasing the liquid flow rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer High pressure at the bottom of a distillation tower handling heat sensitive materials results in Thermal decomposition of bottoms Erosion of the tower Increased relative volatility Very efficient operation Thermal decomposition of bottoms Erosion of the tower Increased relative volatility Very efficient operation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In batch distillation with constant reflux, overhead product composition __________ with time. May increase on decrease, depends on the system Does not vary Increases Decreases May increase on decrease, depends on the system Does not vary Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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