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Mass Transfer

Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- (f - 1)/f
- f/(1 - f)
- 1/f
(1 - f)/f

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Mass Transfer
Freundlich equation applies to the adsorption of solute from

Gaseous solutions at high pressure
None of these
Dilute solutions, over a small concentration range
Concentrated solutions

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Mass Transfer
__________ column is used in gas absorption process.

Bubble cap
Packed
Seive/perforated tray
Wetted wall

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Liquid density
Flooding
Liquid hold up
Gas viscosity

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Mass Transfer
As the reflux ratio decreases, the

Column diameter increases
None of these
Number of plates increases
Separation becomes more efficient

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Mass Transfer
______ is the separation technique used for desalination of sea water.

Absorption
Adsorption
Reverse osmosis
Thermal diffusion

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