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Mass Transfer

Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Bubble
Tray
Packed
Spray

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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

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

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Mass Transfer
Can a cooling tower cool water below the wet bulb temperature of inlet air?

Yes ; but the air flow rate should be excessively high
No
Yes ; but height of cooling tower will be prohibitively high
Yes

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Mass Transfer
Steady state equimolal counter diffusion is encountered in

Absorption of NH₃ from air by water
All liquid-liquid diffusion systems
All of these
Separation of a binary mixture by distillation

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

Infinity
Zero
None of these
Unity

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Molecular
Steam
Extractive
Simple

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