Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D D0.5 1/D D2 D D0.5 1/D D2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is Used for multicomponent systems like crude refining Most useful for handling binary systems Same as simple distillation Same as differential distillation Used for multicomponent systems like crude refining Most useful for handling binary systems Same as simple distillation Same as differential distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? No Yes ; but the air flow rate should be excessively high Yes ; but height of cooling tower will be prohibitively high Yes No Yes ; but the air flow rate should be excessively high Yes ; but height of cooling tower will be prohibitively high Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of unsaturated air Dew point < wet bulb temperature None of the listed here Wet bulb temperature < dry bulb temperature Both of the options given here Dew point < wet bulb temperature None of the listed here Wet bulb temperature < dry bulb temperature Both of the options given here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In extractive distillation, solvent is Of high volatility Of high viscosity to give high tray efficiency Added to alter the relative volatility of the mixture Present in overhead stream Of high volatility Of high viscosity to give high tray efficiency Added to alter the relative volatility of the mixture Present in overhead stream ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) 1/√P 1/P P √P 1/√P 1/P P √P ANSWER DOWNLOAD EXAMIANS APP
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