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Mass Transfer

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

T
T²
√T
1/T

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Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

Vacuum gas oil
K₂CO₃
HCl
Ethanolamine

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Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Rotary
Drun
Cylinder
Freeze

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Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Remains same
Increase
Depend on saturated boiling point; may increase or decrease
Decrease

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Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Ion-exchange
Absorption
Rectification

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Mass Transfer
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

More
Same
Unpredictable
Less

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