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Mass Transfer

Mass Transfer
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

2
4
3
1

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Mass Transfer
Langmuir equation is associated with

Leaching
Steam distillation
Adsorption
Multicomponent absorption

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Mass Transfer
Lewis number (Le) is

Pr x St
Sc x Pr
Sh x Pr
St x Sh

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Mass Transfer
The commonly used solvent in supercritical extraction is

Carbon dioxide
Water
Carbon tetrachloride
Methyl ethyl ketone

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Mass Transfer
The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature.

Dry bulb
Dew point
Wet bulb
None of these

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Spray chamber
Natural draft cooling tower
Induced draft cooling tower
None of these

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