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Mass Transfer

Mass Transfer
NSc/NPr is called the

Psychrometric ratio
Lewis number
Stantan number
Sherwood number

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Mass Transfer
During drying of a solid, the critical moisture content increases with

Both B and C
Decreased drying rate
Increased thickness of the solid
Increased drying rate

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Mass Transfer
Which is the controlling factor for a drum drier?

Heat transfer
Diffusion
Both A & B
Neither A nor B

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Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

Podbielniak
None of the listed here
Schiebel
Treybal

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Increases
None of these
Decreases
Remains unchanged

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Mass Transfer
The rate of mass transfer is not dependent upon the

Interfacial surface exposed between the phases
Both A & B
None of these
Degree of dispersion of one fluid in the other

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