Mass Transfer Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second. 1 1 to 5 5 to 10 > 10 1 1 to 5 5 to 10 > 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At what value of reflux ratio, number of theoretical plates in a distillation column is minimum? < 1 ∞ 1 < 1 ∞ 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. Either A or B; depends on the gas Remains same Decreases Increases Either A or B; depends on the gas Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation. High pressure None of these Atmospheric Vacuum High pressure None of these Atmospheric Vacuum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages Decrease Increase Remain unchanged Can either increase or decrease, depends on the system Decrease Increase Remain unchanged Can either increase or decrease, depends on the system ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio increases, the slope of the operating line for rectifying section Data insufficient, cannot be predicted Increases Remains constant Decreases Data insufficient, cannot be predicted Increases Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
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