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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Steam
Differential
Continuous
Flash

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Mass Transfer
Minimum reflux ratio in a distillation column results in

Optimum number of trays
Minimum reboiler size
Minimum number of trays
Maximum condenser size

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Mass Transfer
In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as

Ri = (1 - Re)/Re
Ri = Re/(1 + Re)
Ri = Re/(1 - Re)
Ri = Re

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

T
√T
T²
T³

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Mass Transfer
In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

Extractive
Flash
Molecular
Azeotropic

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Mass Transfer
The reciprocal of stripping factor is termed as

Selectivity index
Relative volatility
Absorption factor
Murphree efficiency

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MORE MCQ ON Mass Transfer

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