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Mass Transfer

Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.53
Re0.83
Re0.33
Re

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Pressure
None of the listed here
Both Pressure & Temperature
Temperature

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Mass Transfer
Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time)

(De.t)1/2
(4De/t)
(De/t)1/2
(4De/πt)1/2

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Short tube
Falling film
Long tube
Vacuum

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Mass Transfer
Diameter to height ratio for a rashig ring is

1
5
0.5
2

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Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Absorption
Ion-exchange
Rectification

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MORE MCQ ON Mass Transfer

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