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Mass Transfer

Mass Transfer
What is the reflux ratio at total reflux?

Unity
Infinity
Zero
Data insufficient

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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

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

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

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Activated carbon
Silica gel
Alumina
Fuller

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Mass Transfer
Weeping in a distillation column

Increases tray efficiency
Results due to very high gas velocity
Results due to very low gas velocity
Provides large interfacial surface for mass transfer

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Mass Transfer
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an

Binary mixture
Insoluble binary system
Pure component
Ternary mixture

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