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Mass Transfer

Mass Transfer
Leaching of coarse solid lumps is also termed as

Agitation and settling
Percolation
Dissolution
Decoction

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Mass Transfer
The critical moisture content in case of drying indicates the __________ rate period.

Beginning of falling
None of these
End of falling
Beginning of constant

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

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

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Mass Transfer
Batch tray dryers suffers from the disadvantage of

High maintenance cost
Non-uniform & low production rate
High labour cost & low heat economy
All of the listed here

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Mass Transfer
For a single component absorber, the operating line is straight only when plotted in term of __________ units.

Mole ratio
Partial pressure
Mole fraction
None of these

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Mass Transfer
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

Equal
More
Either A or B; depends on the packing height
Less

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