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Mass Transfer

Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

0.6
2
0.5
1

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Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Free
Equilibrium
Bound
Unbound

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Mass Transfer
NSc/NPr is called the

Sherwood number
Lewis number
Stantan number
Psychrometric ratio

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Mass Transfer
(NSh/NRe.NSc) is termed in mass transfer operation as the

Thermal diffusivity
Stanton number
Momentum diffusivity
Peclet number

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Mass Transfer
Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty?

Wetted wall tower
Perforated tray tower
Grid tray tower
Bubble cap tower

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Mass Transfer
Chemisorption (chemical adsorption) is

Same as "Van der Waals" adsorption
Characterised by adsorption of heat
A reversible phenomenon
An irreversible phenomenon

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