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Mass Transfer

Mass Transfer
NSc/NPr is called the

Sherwood number
Stantan number
Lewis number
Psychrometric ratio

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Mass Transfer
Ion exchange process is similar to

Extraction
Adsorption
Absorption
Leaching

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Multicomponent absorption with chemical reaction
Solid-liquid extraction
Multicomponent distillation
Liquid-liquid extraction

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Mass Transfer
In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero.

Gas phase
Interface
All of these
Liquid phase

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Mass Transfer
Wetted wall tower experiment determines the

Volumetric co-efficient
Molal diffusivity
None of these
Mass transfer co-efficient

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Mass Transfer
Air at a particular humidity is heated in a furnace. The new dew point

Increases
Remain unchanged
Decreases
Depends on the extent of heating

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