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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Spray
Fluidised bed
Cylinder
Rotary

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Mass Transfer
Which of the following is a suitable absorbent for removal of H₂S from natural gas?

Monoethanol amine (MEA)
Vetrocoke solution
Dilute
Hot water

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Mass Transfer
Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as

D0.5
D1.5
D
1/D

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Mass Transfer
Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for

Total reflux
All of these
Constant molal overflow
Constant relative volatility

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Mass Transfer
Which of the following has the same dimension as mass diffusivity?

Thermal diffusivity
Kinematic viscosity
Momentum flux
Both Momentum flux & Kinematic viscosity

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Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

-1.5
0.6
-0.6
1.5

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