Mass Transfer Which of the following is the most suitable for extraction in a system having very low density difference? Packed extraction tower Pulsed extractor Centrifugal extractor Mixer-settler extractor Packed extraction tower Pulsed extractor Centrifugal extractor Mixer-settler extractor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase. Neither A nor B Gas Liquid Both A & B Neither A nor B Gas Liquid Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a counter-current liquid extractor Liquid's flow rate depends upon the temperature and pressure Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Both liquids flow at fixed rate Liquid's flow rate depends upon the temperature and pressure Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Both liquids flow at fixed rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption accompanied by heat evolution results in Decrease in equilibrium solubility Increase in equilibrium solubility None of these Increased capacity of the absorber Decrease in equilibrium solubility Increase in equilibrium solubility None of these Increased capacity of the absorber ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer NSc/NPr is called the Lewis number Stantan number Psychrometric ratio Sherwood number Lewis number Stantan number Psychrometric ratio Sherwood number ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS