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Mass Transfer

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

Infinity
Unity
None of these
Zero

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Mass Transfer
Schmidt number is given by

Re/Pe
Re.Pe
Μ/ρDAB
Sh x Pe

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Mass Transfer
The main reason for dividing a tall packed tower into series of small towers is to

Avoid flooding
Minimise the overall pressure drop
Avoid channeling
Reduce liquid hold up

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Mass Transfer
Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

Humidified
Dehumidified
Cooled
Both A & B

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Mass Transfer
Steam distillation is used for separation of high boiling

Substances from non-volatile impurities
Volatile impurity from still higher boiling substances
Both of the options given here
none of the listed here

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Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

1/μ
√μ
μ²
μ

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