Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Number of plates decreases very slowly first and then more and more rapidly Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases Number of plates decreases very slowly first and then more and more rapidly Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption compared to physical absorption has Increased utilisation of stagnant zones of the liquid phase None of these Lower capacity of the solvent for the solute gas Lower adsorption rate Increased utilisation of stagnant zones of the liquid phase None of these Lower capacity of the solvent for the solute gas Lower adsorption rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is Unpredictable More Same Less Unpredictable More Same Less ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The caking of crystals can be prevented by Maintaining high critical humidity Coating the product with inert material Maintaining low critical humidity Both A and C Maintaining high critical humidity Coating the product with inert material Maintaining low critical humidity Both A and C ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Bubble cap tower Perforated tray tower Grid tray tower Wetted wall tower Bubble cap tower Perforated tray tower Grid tray tower Wetted wall tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives Low pressure drop and low hold up Low pressure drop and high hold up High pressure drop and low hold up High pressure drop and high hold up Low pressure drop and low hold up Low pressure drop and high hold up High pressure drop and low hold up High pressure drop and high hold up ANSWER DOWNLOAD EXAMIANS APP
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