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Mass Transfer

Mass Transfer
Schmidt number is given by

Μ/ρDAB
Sh x Pe
Re.Pe
Re/Pe

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Mass Transfer
Percentage saturation is __________ the relative saturation.

None of these
Always smaller than
Always greater than
Not related to

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Mass Transfer
In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

< 8 : 1
> 8:1
< 6:1
> 4 :1

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Mass Transfer
When the feed to a distillation column is a saturated liquid, slope of the feed line is

Infinity
None of these
Unity
Zero

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Mass Transfer
In case of gases, the binary diffusivity is proportional to (where, P = pressure)

P
√P
1/P
1/√P

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Mass Transfer
Overall efficiency of the distillation column is

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

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