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Mass Transfer

Mass Transfer
The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate.

Above
Across
Both A & B
Neither A nor B

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Multicomponent distillation
Solid-liquid extraction
Multicomponent absorption with chemical reaction
Liquid-liquid extraction

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Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Spouted bed
Rotary
Tray
Truck

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Mass Transfer
The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature.

Dry bulb
Wet bulb
None of these
Dew point

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Mass Transfer
The operating cost of a distillation column at minimum reflux ratio is

Maximum
Zero
Infinite
Minimum

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Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the temperature (T) as

D ∝ T2
D ∝ T0.5
D ∝ T
D ∝ T1.5

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