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Mass Transfer

Mass Transfer
NSc/NPr is called the

Lewis number
Sherwood number
Stantan number
Psychrometric ratio

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Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

Centrifugal
Packed
None of these
Plate

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Mass Transfer
In case of non-ideal gases and liquids, the molal diffusivity

Is equal to the volumetric diffusivity
Is independent of pressure
Varies inversely as the pressure
Varies directly as the pressure

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

Water-hydrochloric acid
None of the listed here
Acetone-carbon disulphide
Water-ethyl alcohol

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Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Spray column
Mixer settler
Baffle tower
Pulse column

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

Remain unchanged
Decreases
Depends on the extent of heating
Increases

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