Mass Transfer In a counter-current liquid extractor Liquid's flow rate depends upon the temperature and pressure Both liquids can have any desired flow rate Both liquids flow at fixed rate Only one of the liquids may be pumped at any desired rate Liquid's flow rate depends upon the temperature and pressure Both liquids can have any desired flow rate Both liquids flow at fixed rate Only one of the liquids may be pumped at any desired rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower) (G.a)/FG F/(FG.a) FG/(G.a) L/(FG.G) (G.a)/FG F/(FG.a) FG/(G.a) L/(FG.G) ANSWER DOWNLOAD EXAMIANS APP
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) 1000 50 500 100 1000 50 500 100 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The diffusivity (D) in a binary gas mixture is related to the pressure (P) as D ∝ 1/P D ∝ 1/P1.5 D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P D ∝ 1/P1.5 D ∝ 1/P0.5 D ∝ P0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as Re0.33 Re0.53 Re0.83 Re Re0.33 Re0.53 Re0.83 Re ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the concentration of the adsorbate, the integral heat of adsorption Increases Remains unchanged May increase or decrease ; depends on the type of adsorbate Decreases Increases Remains unchanged May increase or decrease ; depends on the type of adsorbate Decreases ANSWER DOWNLOAD EXAMIANS APP
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