The binary diffusivity in gases does not depend upon the ___________________?
A. Pressure
B. Temperature
C. Nature of the components
D. None of these
Month: February 2019
The Knudsen diffusivity is dependent on the ______________________?
The Knudsen diffusivity is dependent on the ______________________?
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
Overall efficiency of the distillation column is _____________________?
Overall efficiency of the distillation column is _____________________?
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
For a binary mixture with low relative volatility, continuous rectification to get pure products will require_____________________?
For a binary mixture with low relative volatility, continuous rectification to get pure products will require_____________________?
A. Low reflux ratio
B. Less number of trays
C. Small cross-section column
D. High reflux ratio
Critical humidity of a solid salt means the humidity_____________________?
Critical humidity of a solid salt means the humidity_____________________?
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
CO2 can be absorbed by____________________?
CO2 can be absorbed by____________________?
A. Hot cupric oxide
B. Heated charcoal
C. Cold Ca(OH)2
D. Alumina
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is_________________?
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is_________________?
A. Natural draft cooling tower
B. Induced draft cooling tower
C. Spray chamber
D. None of these
Solvent used in extractive distillation___________________?
Solvent used in extractive distillation___________________?
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.
Weight of 1 m3 of humid air as compared to 1 m3 of dry air, under the same conditions, is_________________?
Weight of 1 m3 of humid air as compared to 1 m3 of dry air, under the same conditions, is_________________?
A. Less
B. More
C. Same
D. Unpredictable
Which of the following remains constant during evaporative cooling process with recirculated water supply ?
Which of the following remains constant during evaporative cooling process with recirculated water supply ?
A. Relative humidity
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these