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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Distillation column
Dryer
Evaporator
Crystalliser

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Mass Transfer
Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )

P >>P
P
P = P
P < P

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Mass Transfer
In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.

Liquid
Neither A nor B
Both A & B
Gas

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Mass Transfer
The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³)

500
100
50
1000

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

Absorption
Reverse osmosis
Thermal diffusion
Adsorption

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Sieve plate
Packed
Pulse
Bubble cap

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