Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.
Select an option to see the answer and solution.
Chemical Engineering · all questionsMass Transfer
Mass Transfer
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
656
Questions
1/33
Page
Pick an option on a question to see the right answer and solution.
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.
Select an option to see the answer and solution.
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________
Select an option to see the answer and solution.
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)
Select an option to see the answer and solution.
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.
Select an option to see the answer and solution.
Which of the following binary systems is an example of a maximum boiling azeotrope?
Select an option to see the answer and solution.
Capacity of a rotary dryer depends on its
Select an option to see the answer and solution.
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.
Select an option to see the answer and solution.
Removal of __________ exemplifies an adsorption unit operation.
Select an option to see the answer and solution.
Pick out the wrong statement pertaining to the analogy between equations of heat and mass transfer operations.
Select an option to see the answer and solution.
Co-current absorbers are usually used when the gas to be dissolved in the liquid is
Select an option to see the answer and solution.
The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by
Select an option to see the answer and solution.
The diffusion co-efficient in m2/s. of acetic acid in benzene (liquid in liquid) is
Select an option to see the answer and solution.
The relative saturation of a partially saturated mixture of vapour and gas can be increased by __________ of the mixture.
Select an option to see the answer and solution.
Experimental determination of __________ is done by wetted wall column method.
Select an option to see the answer and solution.
Powdery materials can be guarded against caking tendency on storage by
Select an option to see the answer and solution.
Measurement of the interfacial area of mass transfer is achieved easily & accurately in case of a __________ coloumn.
Select an option to see the answer and solution.
The equilibrium liquid composition compared to the vapor composition in case of azeotropic mixture is
Select an option to see the answer and solution.
When the gas to be dissolved in liquid is a/an __________ then normally co-current adsorber are used.
Select an option to see the answer and solution.
Coffee is prepared from coffee beans by leaching with
Select an option to see the answer and solution.