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Mass Transfer

Mass Transfer
Leaching of coarse solid lumps is also termed as

Agitation and settling
Dissolution
Percolation
Decoction

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Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Kg
Gm
Litre
c

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Mass Transfer
In case of constant underflow extraction operation, the __________ at all solute concentration.

Ratio of the insoluble to solution is constant
Neither A nor B
Solids are drained to the same extent
Both A & B

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Mass Transfer
What is the reflux ratio at total reflux?

Zero
Infinity
Unity
Data insufficient

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Mass Transfer
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

√T
T
T3
T1.5

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Mass Transfer
Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.

None of these
Bound
Unbound
Critical

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