Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The diffusivity (D) in a binary gas mixture is related to the temperature (T) as D ∝ T D ∝ T0.5 D ∝ T1.5 D ∝ T2 D ∝ T D ∝ T0.5 D ∝ T1.5 D ∝ T2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate period, the rate of drying decreases with the Both A & B Decrease in air temperature Neither A nor B Increase in air humidity Both A & B Decrease in air temperature Neither A nor B Increase in air humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory. Surface renewal Film Penetration None of these Surface renewal Film Penetration None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following has the same dimension as mass diffusivity? Thermal diffusivity Both Momentum flux & Kinematic viscosity Momentum flux Kinematic viscosity Thermal diffusivity Both Momentum flux & Kinematic viscosity Momentum flux Kinematic viscosity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Binary distillation involves the mass transfer by __________ at the gas-liquid interface. Unidirectional diffusion from liquid to gas phase Either A or B Unidirectional diffusion from gas to liquid phase A counter diffusion at an almost equal molar rate Unidirectional diffusion from liquid to gas phase Either A or B Unidirectional diffusion from gas to liquid phase A counter diffusion at an almost equal molar rate ANSWER DOWNLOAD EXAMIANS APP
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