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Mass Transfer

Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Durability
Size
Porosity
Cost

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T²
T
√T
T⁴

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Mass Transfer
Inside the distillation columns, the

Highest temperatures is near the feed plate
Driving force for the liquid flow is its weight
All of these
Vapors are not always at their dew points

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Remain unaffected
Increase
Decrease or increase ; depends on the type of liquid
Decrease

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Mass Transfer
If the amount of the steam used in steam distillation is increased, the temperature of distillation

Depends on relative volatility
Decreases
Remains unchanged
Increases

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Alumina
Activated carbon
Fuller
Silica gel

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