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Mass Transfer

Mass Transfer
Leaching of sugar from sugar beets is done by

Lime water
Hot water
Hexane
Dilute H₂SO₄

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Both A and B
Increases with increase in
Neither A nor B
Is one at unity value of

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Mass Transfer
Very tall packed towers are divided into series of beds to

Avoid flooding
Avoid channelling
Reduce liquid hold-up
Reduce the overall pressure drop

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Mass Transfer
In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be

At ground level
10 metres above ground
2 metres above the ground
5 metres above ground

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Mass Transfer
What is the reflux ratio at total reflux?

Infinity
Unity
Data insufficient
Zero

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Mass Transfer
For a single component absorber, the operating line is straight only when plotted in term of __________ units.

Partial pressure
Mole ratio
None of these
Mole fraction

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