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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Spray
Rotary
Fluidised bed
Cylinder

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Mass Transfer
Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time)

(4De/πt)1/2
(De.t)1/2
(4De/t)
(De/t)1/2

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Mass Transfer
With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency

Increases
Remains same
May increase or decrease ; depends on individual design
Decreases

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Mass Transfer
Rayleigh's equation applies to __________ distillation.

Differential
Flash
Continuous
Steam

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Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

> 1
≤ 1
1
< 1

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

Increased diffusivity
Both Decreased viscosity of liquid & Increased diffusivity
Decreased viscosity of liquid
None of the listed here

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MORE MCQ ON Mass Transfer

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