Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) 1/D D0.5 D D2 1/D D0.5 D D2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid Decreases with temperature Increases with temperature May increase or decrease with temperature Is independent of temperature Decreases with temperature Increases with temperature May increase or decrease with temperature Is independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A binary mixture of benzene and cyclohexane is separated by Flash vaporisation Solvent extraction Extractive distillation Ordinary distillation Flash vaporisation Solvent extraction Extractive distillation Ordinary distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D2 K ∝ D K ∝ D1.5 K ∝ √D K ∝ D2 K ∝ D K ∝ D1.5 K ∝ √D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Priming in a distillation column Reduces the overall pressure drop Is desirable from point efficiency consideration Results from very low gas velocity Is characterised by the presence of foam throughout the space between trays Reduces the overall pressure drop Is desirable from point efficiency consideration Results from very low gas velocity Is characterised by the presence of foam throughout the space between trays ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction, Exponentially None of these Linearly Inversely Exponentially None of these Linearly Inversely ANSWER DOWNLOAD EXAMIANS APP
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