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Mass Transfer

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

Pulse
Bubble cap
Sieve plate
Packed

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Mass Transfer
Which of the following operations does not involve leaching?

Removing nicotine from its water solution by kerosene
Dissolving pharmaceutical products from bark or roots
Dissolving gold from ores
Dissolving sugar from the cells of the beet

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Mass Transfer
To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)

Increase 'G' and decrease 'S'
Increase 'S' and decrease 'G'
Decrease both 'G' and 'S'
Increase both 'G' and 'S'

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

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

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Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

More than
Very much less
Same as
Less than

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Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

∞
-ve
+ve

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