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Mass Transfer

Mass Transfer
Tea percolation employs

Absorption
None of these
Leaching
Liquid-liquid extraction

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Mass Transfer
In case of unsaturated air

Wet bulb temperature < dry bulb temperature
Both of the options given here
Dew point < wet bulb temperature
None of the listed here

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

S₁ - S₂
S₂/S₁
S₁ x S₂
S₁/S₂

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Mass Transfer
Stacked packing compared to dumped packing

Provides poorer contact between the fluids
Gives higher pressure drop
Gives lower pressure drop
Both A & B

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Mass Transfer
Which of the following remains constant during evaporative cooling process with recirculated water supply?

None of these
Wet bulb temperature
Relative humidity
Partial pressure of vapour

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Mass Transfer
Wetted wall tower experiment determines the

None of these
Molal diffusivity
Mass transfer co-efficient
Volumetric co-efficient

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