Mass Transfer
In saturated gas, the

Vapour is in equilibrium with the liquid at the room temperature
Vapour is in equilibrium with the liquid at the gas temperature
None of the listed here
Partial pressure of vapour equals the vapour pressure of the liquid at room temperature

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Mass Transfer
Steam distillation is used to

Avoid thermal decomposition of a component
Increase the efficiency of separation
Reduce the number of plates
Increase the total pressure of distillation

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Mass Transfer
Bollman extractor

Employs only counter-current extraction
Is a static bed leaching equipment
Is used for extraction of oil from oilseed
Is a centrifugal extractor

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