Mass Transfer The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³) 100 1000 50 500 100 1000 50 500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At minimum reflux ratio for a given separation Separation is most efficient Number of plates is infinity Minimum number of the theoretical plates is required Number of plates is zero Separation is most efficient Number of plates is infinity Minimum number of the theoretical plates is required Number of plates is zero ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model. Perfectly mixed Plug None of the listed here Both plug & perfectly mixed Perfectly mixed Plug None of the listed here Both plug & perfectly mixed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is 0.175 0.2 0.4 0.25 0.175 0.2 0.4 0.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An example of elutioh is 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 Dissolution of tannin out of tree barks by water Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The diffusivity (D) in a binary gas mixture is related to the temperature (T) as D ∝ T D ∝ T2 D ∝ T0.5 D ∝ T1.5 D ∝ T D ∝ T2 D ∝ T0.5 D ∝ T1.5 ANSWER DOWNLOAD EXAMIANS APP
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