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Mass Transfer

Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Cost
Porosity
Durability
Size

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Mass Transfer
For a binary mixture with low relative volatility, continuous rectification to get pure products will require

Less number of trays
Low reflux ratio
High reflux ratio
Small cross-section column

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Mass Transfer
Absorption factor method is used to calculate the number of ideal stages, when

Both operating and equilibrium lines are parallel
Operating line lies below the equilibrium line
Operating line lies above the equilibrium line
Pressure drop in the column is very high

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Mass Transfer
Reverse osmosis is also called

Dialysis
Diffusion
Ultrafiltration
Electrodilysis

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Mass Transfer
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent

A binary mixture
A pure component
Partially miscible ternary system
A ternary mixture

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Mass Transfer
With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible.

Remains same
Decreases
Increases
Increases linearly

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