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Mass Transfer

Mass Transfer
Tea percolation employs

Absorption
Liquid-liquid extraction
None of these
Leaching

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Mass Transfer
When the temperature and humidity of air is low, we usually use __________ draft cooling tower.

None of these
Natural
Induced
Forced

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Mass Transfer
Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

S₂/S₁
S₁ x S₂
S₁/S₂
S₁ - S₂

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Mass Transfer
Which of the following assumes constant molal vaporisation and overflow?

Enthalpy concentration method
Plate absorption column
Ponchan-Savarit method
McCabe-Thiele method

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Mass Transfer
In case of gases, the binary diffusivity is proportional to (where, P = pressure)

1/P
P
√P
1/√P

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Mass Transfer
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

1
None of these
?

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