Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

None of the listed here
Schiebel
Treybal
Podbielniak

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Mass Transfer
In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Temperature is less
Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition
Total pressure is less
Saturated steam is used for steam distillation

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