Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ extractor is used for the concentration of radioactive nuclear waste. None of the listed here Mixer-settler Pulsed column Seive plate None of the listed here Mixer-settler Pulsed column Seive plate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Physical absorption is An irreversible phenomenon Accompanied by evolution of heat Both B & C A reversible phenomenon An irreversible phenomenon Accompanied by evolution of heat Both B & C A reversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate. Exponentially increases Increases Decreases Does not affect Exponentially increases Increases Decreases Does not affect ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ D1.5 K ∝ √D K ∝ D2 K ∝ D K ∝ D1.5 K ∝ √D K ∝ D2 K ∝ D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency Increases tray efficiency Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency Increases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
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