Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 2.5 to 3 1.2 to 1.5 5 3 to 4 2.5 to 3 1.2 to 1.5 5 3 to 4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In paper industry, paper is dried in a __________ dryer. Conveyor Festoon Heated cylinder Tunnel Conveyor Festoon Heated cylinder Tunnel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant Decreases Remains unchanged Increases Increases exponentially Decreases Remains unchanged Increases Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Depend on saturated boiling point; may increase or decrease Remains same Increase Decrease Depend on saturated boiling point; may increase or decrease Remains same Increase Decrease 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
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