Mass Transfer The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives High pressure drop and low hold up High pressure drop and high hold up Low pressure drop and high hold up Low pressure drop and low hold up High pressure drop and low hold up High pressure drop and high hold up Low pressure drop and high hold up Low pressure drop and low hold up ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid ) P P < P P = P P >>P P P < P P = P P >>P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the concentration of the adsorbate, the integral heat of adsorption Decreases May increase or decrease ; depends on the type of adsorbate Remains unchanged Increases Decreases May increase or decrease ; depends on the type of adsorbate Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Rate of drying decreases abruptly Surface evaporation of unbound moisture occurs Cracks develop on the surface of the solid None of these Rate of drying decreases abruptly Surface evaporation of unbound moisture occurs Cracks develop on the surface of the solid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. Wet bulb Dew point Dry bulb None of these Wet bulb Dew point Dry bulb None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D ANSWER DOWNLOAD EXAMIANS APP
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