Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which is the controlling factor for a drum drier? Both A & B Diffusion Heat transfer Neither A nor B Both A & B Diffusion Heat transfer Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant Increases exponentially Increases Decreases Remains unchanged Increases exponentially Increases Decreases Remains unchanged 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 8.5 x 10⁻³ 5.6 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻⁴ 8.5 x 10⁻³ 5.6 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is an undesirable property in a tower packing? Large free cross-section Large surface per unit volume Large weight of liquid retained Low weight per unit volume Large free cross-section Large surface per unit volume Large weight of liquid retained Low weight per unit volume ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Wetted wall tower experiment determines the Molal diffusivity Mass transfer co-efficient None of these Volumetric co-efficient Molal diffusivity Mass transfer co-efficient None of these Volumetric co-efficient ANSWER DOWNLOAD EXAMIANS APP
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