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Mass Transfer

Mass Transfer
The most efficient cooling tower out of the following is

Forced draft
Atmospheric
Natural draft
Induced draft

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Liquid-liquid extraction
Solid-liquid extraction
Multicomponent distillation
Multicomponent absorption with chemical reaction

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Sensible heat
Latent heat
Specific heat
Humid heat

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Mass Transfer
L/mG is the expression for

Slope of operating line in stripper
Slope of operating line in absorber
Absorption factor
Brinkman number

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

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

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Known
Not required
Unknown
Calculated

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