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Mass Transfer

Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
50
5
0.5

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Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

T and T3/2
T3/2 and T
T3/2 and √T
√T and T3/2

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Mass Transfer
Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Evaporation
Distillation
Liquid extraction
Absorption

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Mass Transfer
__________ column is used in gas absorption process.

Bubble cap
Seive/perforated tray
Wetted wall
Packed

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Mass Transfer
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

Freeze
Rotary
None of these
Tray

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Mass Transfer
For a binary mixture with low relative volatility, continuous rectification to get pure products will require

High reflux ratio
Less number of trays
Low reflux ratio
Small cross-section column

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