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Mass Transfer

Mass Transfer
Leaching of coffee from coffee beans is done by

Lime water
Dilute H₂SO₄ (hot)
Hexane
Hot water

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

Penetration
Surface-renewal
Film
None of these

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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.

Dry bulb
Wet bulb
Dew point
None of these

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

Logarithmic
Linear
Inverse
Exponential

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Mass Transfer
The minimum number of theoretical plates is required for achieving a given separation in distillation column with

Minimum reflux ratio
No reflux
Total reflux
Zero reflux ratio

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

2
1
0.5
∞

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