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Mass Transfer

Mass Transfer
Ion exchange process is similar to

Adsorption
Absorption
Extraction
Leaching

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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)

100
500
1000
50

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Mass Transfer
Swenson-Walker crystalliser is a __________ unit

Cooling (adiabatic)-cum-evaporation
Batch
Continuous
Semi-batch

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Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

Sherwood
Grashoff
Lewis
None of these

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Mass Transfer
__________ extractor is used for the concentration of radioactive nuclear waste.

None of the listed here
Seive plate
Mixer-settler
Pulsed column

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Liquid-liquid extraction
Solid-liquid extraction
Multicomponent absorption with chemical reaction
Multicomponent distillation

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