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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

Heated charcoal
Cold Ca(OH)₂
Alumina
Hot cupric oxide

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Mass Transfer
Which of the following is used for the concentration of rubber latex?

Calendria
Long tube vertical evaporator
Short tube evaporator
Agitated film evaporator

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Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

None of these
Wet bulb
Room
Gas

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = NLe
NSc = 1
NSc = NPr = NLe
NPr = NLe

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Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

-1
1
- ve
+ ve

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Mass Transfer
Total reflux in a distillation operation requires minimum

Number of plates
Reboiler load
All of these
Condenser load

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