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Mass Transfer

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

Inverse
Linear
Exponential
Logarithmic

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Mass Transfer
In case of unsaturated air

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

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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

0.5
2
1
∞

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Both A & B
Increased diffusivity
Neither A nor B
Decreased liquid viscosity

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Mass Transfer
Which of the following operations does not involve leaching?

Dissolving gold from ores
Dissolving pharmaceutical products from bark or roots
Dissolving sugar from the cells of the beet
Removing nicotine from its water solution by kerosene

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Mass Transfer
Mechanism of moisture removal in case of freeze drying of food stuff is by

Dehydration
Evaporation
Sublimation
Adsorption

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