Mass Transfer Danckwerts developed the __________ theory. Surface renewal None of these Penetration Film Surface renewal None of these Penetration Film ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Gas velocity should be very low Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Gas velocity should be very low Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe 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 Dehumidified None of these Humidified at constant wet bulb temperature Humidified with wet bulb temperature decreasing Dehumidified None of these Humidified at constant wet bulb temperature Humidified with wet bulb temperature decreasing ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. Either A or B; depends on the solid More than Equal to Less than Either A or B; depends on the solid More than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The boiling points of pure components of a binary system __________ with increase in total pressure of the system. Decreases Increases Remains unchanged May increase or decrease, depends on the system Decreases Increases Remains unchanged May increase or decrease, depends on the system ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The term "cooling range" in a cooling tower refers to the difference in the temperature of Hot water entering the tower and the wet bulb temperature of the surrounding air Cold water leaving the tower and the wet bulb temperature of the surrounding air None of the listed here Hot water entering the tower and the cooled water leaving the tower Hot water entering the tower and the wet bulb temperature of the surrounding air Cold water leaving the tower and the wet bulb temperature of the surrounding air None of the listed here Hot water entering the tower and the cooled water leaving the tower ANSWER DOWNLOAD EXAMIANS APP
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