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Mass Transfer

Mass Transfer
Dorr thickener is an equipment used for

Leaching
Classification
Clarification
Sedimentation

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Calculated
Not required
Unknown
Known

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Mass Transfer
The binary diffusivity in gases does not depend upon the

Nature of the components
Pressure
None of the listed here
Temperature

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Mass Transfer
Design calculation for multiple component distillation is done by

Mccabe-Thiele method
Ponchon-Savarit method
Tray to tray calculations
Enthalpy concentration method

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Mass Transfer
Steam distillation is used to separate

Mixtures of low relative volatility
High boiling substances from nonvolatile impurities
Azeotropes
Heat sensitive materials

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

Reducing the humidity of the air
Increasing the air velocity and area of exposed wet surface
Reducing the barometric pressure
All of the listed here

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