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Mass Transfer

Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

1/f
F
2f
F/2

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Mass Transfer
Humid volume, at a given temperature is a/an __________ function of humidity.

Inverse
Exponential
Linear
Logarithmic

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Mass Transfer
Which of the following is not fixed by the process requirements, in the design of absorbers?

None of these
Terminal concentrations of gas stream
Composition of the entering liquid
Flow rate of the entering gas

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Mass Transfer
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

Equal to the heat of wetting
Called integral heat of adsorption
Zero
Equal to the heat of formation of surface compound

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Mass Transfer
(NSh/NRe.NSc) is termed in mass transfer operation as the

Peclet number
Thermal diffusivity
Momentum diffusivity
Stanton number

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Mass Transfer
Leaching of coffee from coffee beans is done by

Dilute H₂SO₄ (hot)
Hexane
Lime water
Hot water

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