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Mass Transfer

Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

10-5 to 10-6
0.01
0.1
> 1

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Mass Transfer
__________ column is used in gas absorption process.

Wetted wall
Packed
Seive/perforated tray
Bubble cap

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Mass Transfer
Capacity of a rotary dryer depends on its

None of the listed here
Both Inclination with ground surface & R.p.m
Inclination with ground surface
R.p.m

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Decreases
May increase or decrease ; depends on the type of adsorbate
Remains unchanged
Increases

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

0.8 to 1.2
0.5 to 0.8
2.5 to 3.5
1.25 to 2.0

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Mass Transfer
Overall efficiency of the distillation column is

Always more than the point efficiency
Same as the Murphree efficiency
The ratio of number of actual plates to ideal plates
The ratio of number of ideal plates to actual plates

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