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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

Unity
Zero
None of these
Infinity

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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
May increase or decrease ; depends on individual design
Remains same

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Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

Proportional to √D
D/a
D/2a
Dependent on the Reynolds number

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Neither A nor B
Dew point
Wet bulb
Both A & B

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Mass Transfer
The expression, y(1 - x)/x(1 - y) is for

Murphree efficiency
Relative volatility
Selectivity
Absorption factor

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

78
50
100
None of these

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