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Mass Transfer

Mass Transfer
The-relative volatility for separation of a non-ideal binary mixture by distillation should be

> 1
1
< 1

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Mass Transfer
Perforated plate towers are unique for solvent extraction because, they provide

Better contact of the phase
None of these
Higher contact area
Repeated coalescence & redispersion of the drop phase

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Mass Transfer
In case of constant underflow extraction operation, the __________ at all solute concentration.

Solids are drained to the same extent
Both A & B
Neither A nor B
Ratio of the insoluble to solution is constant

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Mass Transfer
Small dia distillation column can be a

Bubble cap
Any of these
Packed column
Sieve tray

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Mass Transfer
Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and

Humidified with wet bulb temperature decreasing
None of these
Humidified at constant wet bulb temperature
Dehumidified

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Mass Transfer
What is the reflux ratio at total reflux?

Data insufficient
Infinity
Zero
Unity

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