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Mass Transfer

Mass Transfer
If moisture content of solid on dry basis is X, then the same on wet basis is

(X + 1)/X
(X - 1)/X
X/(X + 1)
X/(X - 1)

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Mass Transfer
A good solvent used for absorption should not have very high

Vapor pressure
Freezing point
All of these
Viscosity

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Mass Transfer
Physical absorption is

A reversible phenomenon
An irreversible phenomenon
Accompanied by evolution of heat
Both B & C

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Remains unchanged
Increases
Decreases exponentially
Decreases

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Mass Transfer
The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the

None of these
Differential heat of adsorption
Heat of wetting
Integral heat of adsorption

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Mass Transfer
Which of the following is not a continuous leaching equipment?

Pachuka tank
Hydrocyclones
Kennedy extractor
Bollman extractor

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