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Mass Transfer

Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

1
2
4
3

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Remains unchanged
Increases
Decreases
None of these

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Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

1/μ
μ²
μ
√μ

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

0.8 to 1.2
0.5 to 0.8
1.25 to 2.0
2.5 to 3.5

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Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Either same or higher than
Higher than
Same as
Lower than

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Mass Transfer
'ADDUCTS' and 'CLATHRATES' are used in case of

Absorption
Crystallisation
None of these
Extractive distillation

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