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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

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

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

1
> 1
∞

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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
Removal of __________ exemplifies an adsorption unit operation.

Water from petrol
Uranium from its ore
Ammonia from coke oven gas
None of the listed here

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Mass Transfer
Rotary dryers cannot handle __________ materials.

Grannular
Dry
Sticky
Free flowing

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Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

Same as
Very much less
More than
Less than

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