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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

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

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Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

(1 - Ri) = Ro/Ri
(1 + Ri) = Ro/Ri
(1 - Ro) = Ro/Ri
(1 + Ro) = Ro/Ri

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Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Spray
Bubble
Packed
Tray

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Mass Transfer
Ion exchange process is similar to

Adsorption
Absorption
Leaching
Extraction

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Mass Transfer
Lewis number (Le) is

St x Sh
Pr x St
Sc x Pr
Sh x Pr

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Mass Transfer
With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible.

Increases
Increases linearly
Decreases
Remains same

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