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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

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

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Mass Transfer
In a packed bed absorption column, the channelling will be noted by the

None of these
Sharp rise in pressure drop
Increase in flow rate
Sharp drop in pressure drop

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Steam
Molecular
Simple
Extractive

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Mass Transfer
In extractive distillation, solvent is

Added to alter the relative volatility of the mixture
Of high volatility
Of high viscosity to give high tray efficiency
Present in overhead stream

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Mass Transfer
With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency

Decreases
Increases
Remains same
May increase or decrease ; depends on individual design

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Mass Transfer
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

200-300
43835
22190
> 500

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