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Mass Transfer

Mass Transfer
Surface renewal model of mass transfer was enunciated by

Danckwerts
Stefan
Toor and Marchello
Fick

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Mass Transfer
Which of these columns incurs the lowest pressure drop?

Pulse column
Bubble plate column
Packed column (with stacked packing)
Packed column (with dumped packing)

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Mass Transfer
In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

T²
T
√T
1/T

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Mass Transfer
The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called

Percolation
None of these
Decoction
Elutriation or elution

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Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Bound
Unbound
Equilibrium
Free

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Mass Transfer
The film penetration model of mass transfer was enunciated by

Stefan
Fick
Gilliland
Toor and Marchello

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