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Mass Transfer

Mass Transfer
An azeotropic mixture is a __________ mixture.

None of these
Ternary
Constant boiling point
Binary

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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Low pressure drop on pumping
Rapid absorption rates and good heat transfer characteristics
Improved flooding characteristics
All of these

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Mass Transfer
In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

T²
T
√T
1/T

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Remains unchanged
Increases
May increase or decrease ; depends on the type of adsorbate
Decreases

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Mass Transfer
Which of the following is not fixed by the process requirements, in the design of absorbers?

None of these
Flow rate of the entering gas
Terminal concentrations of gas stream
Composition of the entering liquid

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Mass Transfer
A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process?

Relative humidity of outlet air
Flow rate of inlet air
Temperature of the solid
Humidity of inlet air

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