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Mass Transfer

Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

+ve
-ve
∞

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Mass Transfer
__________ developed the film theory.

Fick
Levenspeil
Ergun
Higbie

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Mass Transfer
Unit of molal diffusivity is

Gm moles/cm. sec
Gm moles/cm² . sec
Gm moles/cm². sec
Cm²/sec gm . mole

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Mass Transfer
All moisture in a non-hygroscopic material is the __________ moisture.

Equilibrium
Unbound
Free
Bound

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Mass Transfer
Drift in a cooling tower is

The water entrained by the circulating air
Desirable
All of these
Dependent on the water lost by evaporation

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Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Lies below the equilibrium line
Is far from the equilibrium line
Lies above the equilibrium line
And equilibrium lines are parallel

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