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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

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

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Rotary dryer
Rotating disc contactor
Mechanical draft cooling tower
Multiple effect evaporator

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Sensible heat
Humid heat
Latent heat
Specific heat

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Mass Transfer
Molecular distillation is

High temperature distillation
For heat-sensitive materials
Very low pressure distillation
Both B and C

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Mass Transfer
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Decrease
Increase
Can either increase or decrease, depends on the system
Remain unchanged

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Mass Transfer
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

12
8
2
18

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