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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Higbie
Kissinevskii
Danckwerts
Toor and Marchello

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Mass Transfer
Swenson-Walker crystalliser is a __________ unit

Batch
Continuous
Cooling (adiabatic)-cum-evaporation
Semi-batch

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Mass Transfer
Which of the following parameters remains constant during chemical dehumidifica-tion?

Partial pressure of vapour
Wet bulb temperature
None of these
Dry bulb temperature

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Mass Transfer
In which of the following unit operations, the selectivity is an important parameter?

None of these
Absorption
Solvent extraction
Distillation

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Mass Transfer
The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.

Cubic
Exponential
Parabolic
Linear

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Mass Transfer
At minimum reflux ratio for a given separation

Minimum number of the theoretical plates is required
Separation is most efficient
Number of plates is zero
Number of plates is infinity

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