Mass Transfer For which of the following unit operations, Lewis number is of significance? Binary distillation Humidification Gas absorption Adsorption Binary distillation Humidification Gas absorption Adsorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can be speeded up by All of the listed here Reducing the barometric pressure Increasing the air velocity and area of exposed wet surface Reducing the humidity of the air All of the listed here Reducing the barometric pressure Increasing the air velocity and area of exposed wet surface Reducing the humidity of the air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Liquid entrainment should be severe Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low Liquid entrainment should be severe Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Sand is dried in foundaries in a___drier. Rotary Spray Fluidisedbed Vacuum Rotary Spray Fluidisedbed Vacuum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same process conditions, the reflux ratio of an unlagged distillation column Increases in summer Decreases in winter None of these Increases in winter Increases in summer Decreases in winter None of these Increases in winter ANSWER DOWNLOAD EXAMIANS APP
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