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Mass Transfer

Mass Transfer
When the feed to a distillation column is a saturated liquid, slope of the feed line is

Zero
Infinity
None of these
Unity

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Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

SO₂ in alkaline solution
Benzol present in coke oven gas by wash oil
Ammonia in water
All of these

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Mass Transfer
Reboiler is considered as one theoretical plate, because

Vapour is recycled to the column
None of these
Reboiler itself contains one plate
Of the assumption that vapour and liquid leaving the reboiler are in equilibrium

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

Always < 1
None of these
L/G
G/L

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Mass Transfer
Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture.

Critical
Free
Unbound
Bound

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Mass Transfer
Molecular seives are porous

None of these
Alumina
Silica
Synthetic zeolites crystals/metal alumino-silicates

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