Mass Transfer Desirable value of absorption factor in an absorber is > 1 0.5 < 1 1 > 1 0.5 < 1 1 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 Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 K ∝ √D K ∝ D K ∝ D2 K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is the most suitable for extraction in a system having very low density difference? Centrifugal extractor Mixer-settler extractor Packed extraction tower Pulsed extractor Centrifugal extractor Mixer-settler extractor Packed extraction tower Pulsed extractor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of non-ideal gases and liquids, the molal diffusivity Is independent of pressure Varies directly as the pressure Varies inversely as the pressure Is equal to the volumetric diffusivity Is independent of pressure Varies directly as the pressure Varies inversely as the pressure Is equal to the volumetric diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weeping in a distillation column Results due to very low gas velocity Results due to very high gas velocity Increases tray efficiency Provides large interfacial surface for mass transfer Results due to very low gas velocity Results due to very high gas velocity Increases tray efficiency Provides large interfacial surface for mass transfer ANSWER DOWNLOAD EXAMIANS APP
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