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

Wet bulb
Dew point
Dry bulb
None of these

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Mass Transfer
In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,

None of these
Exponentially
Inversely
Linearly

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Mass Transfer
The commonly used solvent in supercritical extraction is

Water
Carbon tetrachloride
Carbon dioxide
Methyl ethyl ketone

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Mass Transfer
When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption.

Always higher than
Dependent on the system; can be either lower or higher than
Always lower than
Same as

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T²
T
√T
T⁴

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