Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

Decreases in winter
Increases in winter
None of these
Increases in summer

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Mass Transfer
Priming in a distillation column

Is desirable from point efficiency consideration
Reduces the overall pressure drop
Is characterised by the presence of foam throughout the space between trays
Results from very low gas velocity

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Mass Transfer
Inside the distillation column, the

Pressure increases gradually from bottom to the top of the column
Liquids are not always at their bubble points
None of these
Driving force for the vapour flow is the pressure drop

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Mass Transfer
For a ternery mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates.

Binary mixture is represented by the apex
Binary mixture is represented by any point inside
Ternery mixture is represented by the sides
Pure component is represented by the apex

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