A. Pressure
B. Temperature
C. Nature of the components
D. None of these
The binary diffusivity in gases does not depend upon the ___________________? Read More »
Mass Transfer A. Molecular velocity only
B. Pore radius of the catalyst only
C. Molecular mean free path only
D. Molecular velocity and pore radius of the catalyst
The Knudsen diffusivity is dependent on the ______________________? Read More »
Mass Transfer A. The ratio of number of ideal plates to actual plates
B. The ratio of number of actual plates to ideal plates
C. Same as the Murphree efficiency
D. Always more than the point efficiency
Overall efficiency of the distillation column is _____________________? Read More »
Mass Transfer A. Low reflux ratio
B. Less number of trays
C. Small cross-section column
D. High reflux ratio
A. Above which it will always become damp
B. Below which it will always stay dry
C. Both A. and B.
D. Above Which it will always become dry and below which it will always stay damp
Critical humidity of a solid salt means the humidity_____________________? Read More »
Mass Transfer A. Hot cupric oxide
B. Heated charcoal
C. Cold Ca(OH)2
D. Alumina
CO2 can be absorbed by____________________? Read More »
Mass Transfer A. Natural draft cooling tower
B. Induced draft cooling tower
C. Spray chamber
D. None of these
A. Changes the relative volatility of the original components
B. Should be of high volatility
C. Should form azeotropes with the original components
D. All A., B. and C.
Solvent used in extractive distillation___________________? Read More »
Mass Transfer A. Less
B. More
C. Same
D. Unpredictable
A. Relative humidity
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these
