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Mass Transfer

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

Linear
Logarithmic
Exponential
Inverse

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Mass Transfer
Flash distillation is suitable for the separation of components

Which form maximum boiling azeotrope
Having very close boiling points
Which form minimum boiling azeotrope
Having very wide boiling points

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Increases with increase in
Neither A nor B
Both A and B
Is one at unity value of

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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

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

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = 1
NSc = NLe
NPr = NLe
NSc = NPr = NLe

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Mass Transfer
Lewis number (Le) is

Sh x Pr
St x Sh
Pr x St
Sc x Pr

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