Mass Transfer During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant. Partial pressure of water vapor Wet bulb temperature Relative humidity None of these Partial pressure of water vapor Wet bulb temperature Relative humidity None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The unit of volumetric diffusivity is Cm²/seC₂ Cm/sec Cm²/sec Cm³/sec Cm²/seC₂ Cm/sec Cm²/sec Cm³/sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives Low pressure drop and high hold up High pressure drop and high hold up High pressure drop and low hold up Low pressure drop and low hold up Low pressure drop and high hold up High pressure drop and high hold up High pressure drop and low hold up Low pressure drop and low hold up ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature. Dew point Wet-bulb Adiabatic saturation Dry-bulb Dew point Wet-bulb Adiabatic saturation Dry-bulb ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Percentage saturation is __________ the relative saturation. None of these Always smaller than Always greater than Not related to None of these Always smaller than Always greater than Not related to ANSWER DOWNLOAD EXAMIANS APP
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