Mass Transfer MCQs

Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3)

The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Which of the following binary systems is an example of a maximum boiling azeotrope?

Capacity of a rotary dryer depends on its

In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer.

Removal of __________ exemplifies an adsorption unit operation.