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Mass Transfer

Mass Transfer
The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec.

0.0025
0.25
2.5
1.25

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Mass Transfer
For contacting a highly soluble gas with a liquid

Bubble the gas through liquid
None of the listed here
Both of the options given here
Spray the liquid on gas stream

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Bubble cap
Sieve plate
Packed
Pulse

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Mass Transfer
__________ column is used in gas absorption process.

Bubble cap
Seive/perforated tray
Packed
Wetted wall

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Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

0.5
< 1
> 1
1

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Mass Transfer
In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

Azeotropic
Extractive
Molecular
Flash

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