Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An example of elutioh is Dissolution of tannin out of tree barks by water Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Dissolution of tannin out of tree barks by water Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the Viscosity variation of the fluids may cause channeling/flooding None of these Packing may be crushed due to thermal expansion/contraction of the components of the equipments Pressure drop in the equipment will be very high Viscosity variation of the fluids may cause channeling/flooding None of these Packing may be crushed due to thermal expansion/contraction of the components of the equipments Pressure drop in the equipment will be very high ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Does not affect the moisture content of the wet solid Decreases with time Increases with time Does not change with time Does not affect the moisture content of the wet solid Decreases with time Increases with time Does not change with time ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Only small amount of evaporation of water produces large cooling effects because of its Small latent heat Large latent heat None of these Low viscosity Small latent heat Large latent heat None of these Low viscosity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At 750°K and 1 atm, the approximate value of Schmidt number for air is 0.01 1 10 0.1 0.01 1 10 0.1 ANSWER DOWNLOAD EXAMIANS APP
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