Mass Transfer Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a Higher dew point Higher relative humidity Higher absolute (specific) humidity Higher wet bulb temperature Higher dew point Higher relative humidity Higher absolute (specific) humidity Higher wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For gas absorption, low viscosity solvents are preferred, because of their Rapid absorption rates Low pumping pressure drop All of these Better flow characteristics Rapid absorption rates Low pumping pressure drop All of these Better flow characteristics ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is The ratio of number of actual plates to ideal plates Same as the Murphree efficiency The ratio of number of ideal plates to actual plates Always more than the point efficiency The ratio of number of actual plates to ideal plates Same as the Murphree efficiency The ratio of number of ideal plates to actual plates Always more than the point efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Packed column distillation is limited to the column __________ metres. Height < 6 Both A & B Diameter < 0.6 Neither A nor B Height < 6 Both A & B Diameter < 0.6 Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Large scale drying of sugar is done in a __________ dryer. Tray Spouted bed Rotary Truck Tray Spouted bed Rotary Truck ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is 1.56 1 0.56 2 1.56 1 0.56 2 ANSWER DOWNLOAD EXAMIANS APP
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