Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 21.7 20 18.7 27.3 21.7 20 18.7 27.3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are regenerated by heating to __________ °C. 200-330 > 500 > 1000 < 150 200-330 > 500 > 1000 < 150 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Antibiotics are best handled in a Rotating disc contactor Pulsed column extractor Podbielniak extractor Sieve tray contractor Rotating disc contactor Pulsed column extractor Podbielniak extractor Sieve tray contractor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Decreases tray efficiency Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Decreases tray efficiency Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified at constant wet bulb temperature Humidified with wet bulb temperature decreasing None of these Dehumidified Humidified at constant wet bulb temperature Humidified with wet bulb temperature decreasing None of these Dehumidified ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect The fraction vaporised but not the product composition The product composition but not the fraction vaporised Neither the product composition nor the fraction vaporised The product composition as well as the fraction vaporised The fraction vaporised but not the product composition The product composition but not the fraction vaporised Neither the product composition nor the fraction vaporised The product composition as well as the fraction vaporised ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS