Mass Transfer Which of the following is the most suitable for extraction in a system having very low density difference? Pulsed extractor Packed extraction tower Mixer-settler extractor Centrifugal extractor Pulsed extractor Packed extraction tower Mixer-settler extractor Centrifugal extractor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 1 10 9 8 1 10 9 8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Decreases And the heat required in reboiler decreases Remains unaffected Increases Decreases And the heat required in reboiler decreases Remains unaffected Increases ANSWER DOWNLOAD EXAMIANS APP
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 The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model. None of the listed here Perfectly mixed Both plug & perfectly mixed Plug None of the listed here Perfectly mixed Both plug & perfectly mixed Plug ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases does not depend upon the Pressure Nature of the components Temperature None of the listed here Pressure Nature of the components Temperature None of the listed here ANSWER DOWNLOAD EXAMIANS APP