Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Wetted wall columns Plate towers Spray towers Packed towers Wetted wall columns Plate towers Spray towers Packed towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following remains constant during sensible cooling process ? None of the listed here Specific humidity & Partial pressure of vapour Specific humidity Partial pressure of vapour None of the listed here Specific humidity & Partial pressure of vapour Specific humidity Partial pressure of vapour ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the solvent dissolves very little of solute, then Solvent of low freezing point should be used Very small quantity of solvent is required Solvent of low latent heat of vaporisation should be used Large quantity of solvent is required to extract the solute Solvent of low freezing point should be used Very small quantity of solvent is required Solvent of low latent heat of vaporisation should be used Large quantity of solvent is required to extract the solute ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D2 1/D D D0.5 D2 1/D D D0.5 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 Total reflux in a distillation operation requires minimum Condenser load Number of plates Reboiler load All of these Condenser load Number of plates Reboiler load All of these ANSWER DOWNLOAD EXAMIANS APP
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