Mass Transfer Schimdt number and Lewis number for pure air at atmospheric conditions are respectively 0 and ≈ 1 >1 and ≈ 1 1 and 0 < 1 and ≈ 1 0 and ≈ 1 >1 and ≈ 1 1 and 0 < 1 and ≈ 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption (chemical adsorption) is A reversible phenomenon Characterised by adsorption of heat Same as "Van der Waals" adsorption An irreversible phenomenon A reversible phenomenon Characterised by adsorption of heat Same as "Van der Waals" adsorption An irreversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 1 3.97 0.24 600 1 3.97 0.24 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated. Molecular Extractive Azeotropic Flash Molecular Extractive Azeotropic Flash ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point. Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser load is the same in both the cases but reboiler load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser load is the same in both the cases but reboiler load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Both condensor and reboiler loads are higher in case (ii) as compared to case (i) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Decreases Remains unaffected Increases Passes through a maximum Decreases Remains unaffected Increases Passes through a maximum ANSWER DOWNLOAD EXAMIANS APP
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