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Mass Transfer

Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

0.6
-1.5
1.5
-0.6

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Extractive
Molecular
Steam
Azeotropic

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

All of the listed here
Reducing the barometric pressure
Reducing the humidity of the air
Increasing the air velocity and area of exposed wet surface

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Mass Transfer
Absorption accompanied by heat evolution results in

Increased capacity of the absorber
Decrease in equilibrium solubility
Increase in equilibrium solubility
None of these

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Mass Transfer
Danckwerts developed the __________ theory.

None of these
Surface renewal
Film
Penetration

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Mass Transfer
Separation of __________ employs gaseous diffusion process.

Isotopes of helium
SO₂ and air
Isotopes of uranium
N₂ and O₂ from air

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