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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
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

8
2
18
12

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Mass Transfer
Tea percolation employs

Absorption
Leaching
None of these
Liquid-liquid extraction

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

Spray
Tray
Packed
Bubble

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

100
9.21
4.605
0.001

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Dry-bulb
Wet-bulb
Dew point
Adiabatic saturation

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