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Mass Transfer

Mass Transfer
Mechanism of moisture removal in case of freeze drying of food stuff is by

Sublimation
Evaporation
Adsorption
Dehydration

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Mass Transfer
Radioactive nuclear waste is treated in

Pulsed column extractor
Mixer-settler extractor
Bollman extractor
Rotating-disc contactor

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Mass Transfer
When the feed to a distillation column is a saturated liquid, slope of the feed line is

Zero
None of these
Unity
Infinity

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Mass Transfer
At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant

Remains unchanged
Increases exponentially
Increases
Decreases

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Bubble cap
Sieve plate
Pulse

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Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Greater degree of separation with a fixed number of trays
Increased reboiler load
Increased reflux ratio
None of these

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