Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D 1/D D2 D0.5 D 1/D D2 D0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Design calculation for multiple component distillation is done by Tray to tray calculations Ponchon-Savarit method Enthalpy concentration method Mccabe-Thiele method Tray to tray calculations Ponchon-Savarit method Enthalpy concentration method Mccabe-Thiele method ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same system, if the same liquid used in an absorber is decreased, the tower height will Increase Decrease Decrease or increase ; depends on the type of liquid Remain unaffected Increase Decrease Decrease or increase ; depends on the type of liquid Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio increases, the slope of the operating line for rectifying section Increases Data insufficient, cannot be predicted Decreases Remains constant Increases Data insufficient, cannot be predicted Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is Always more than the point efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates Same as the Murphree efficiency Always more than the point efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates Same as the Murphree efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 5 2.5 to 3 3 to 4 1.2 to 1.5 5 2.5 to 3 3 to 4 1.2 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
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