Schmidt number is given by ___________________?
A. μ/ρDAB
B. Re × Pe
C. Sh × Pe
D. Re/Pe
Mass Transfer
_______________ developed the film theory ?
_______________ developed the film theory ?
A. Higbie
B. Fick
C. Ergun
D. Levenspiel
Stacked packing compared to dumped packing_________________?
Stacked packing compared to dumped packing_________________?
A. Provides poorer contact between the fluids
B. Gives lower pressure drop
C. Both A. and B.
D. Gives higher pressure drop
A packed tower compared to a plate tower for a particular mass transfer operation__________________?
A packed tower compared to a plate tower for a particular mass transfer operation__________________?
A. Incurs smaller pressure drop
B. Allows installation of cooling coils
C. Is less costly when built in large sizes/diameters
D. Is more suitable, if suspended solids are present in fluid streams
Raoult’s law applies to the___________________?
Raoult’s law applies to the___________________?
A. All liquid solutions
B. Non-ideal solution only
C. Non-volatile solute
D. Solvents
Which of the following is an undesirable property for an absorbing solvent ?
Which of the following is an undesirable property for an absorbing solvent ?
A. Low vapour pressure
B. Low velocity
C. Low freezing point
D. None of these
Langmuir equation is associated with________________________?
Langmuir equation is associated with________________________?
A. Leaching
B. Adsorption
C. Steam distillation
D. Multi-component absorption
Radioactive nuclear waste is treated in____________________?
Radioactive nuclear waste is treated in____________________?
A. Mixer-settler extractor
B. Rotating-disc contactor
C. Pulsed column extractor
D. Bollman extractor
In case of an absorber, the operating _______________?
In case of an absorber, the operating _______________?
A. Line always lies above the equilibrium curve
B. Line always lies below the equilibrium curve
C. Line can be either above or below the equilibrium curve
D. Velocity is more than the loading velocity
For continuous drying of granular or crystalline material, the dryer used is the _______________ dryer?
For continuous drying of granular or crystalline material, the dryer used is the _______________ dryer?
A. Tunnel
B. Tray
C. Rotary
D. None of these