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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Flash
Continuous
Differential
Steam

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Mass Transfer
In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

Both A & B
Straight
Parallel
Neither A nor B

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Mass Transfer
At 750°K and 1 atm, the approximate value of Schmidt number for air is

1
0.1
0.01
10

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Mass Transfer
Water entrained by circulating air in cooling towers is termed as

Drift
Vapor load
None of the listed here
Blow down

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

None of these
Zero
Unity
Infinity

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Mass Transfer
In most of the vacuum crystalliser, vacuum is generally produced by means of a

Suction pump
Steam jet ejector with a barometric condenser
Compressed air jet
None of these

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