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Mass Transfer

Mass Transfer
NSc/NPr is called the

Stantan number
Sherwood number
Psychrometric ratio
Lewis number

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Mass Transfer
Very tall packed towers are divided into series of beds to

Avoid flooding
Reduce the overall pressure drop
Reduce liquid hold-up
Avoid channelling

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Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

μ²
μ
1/μ
√μ

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

Vetrocoke solution
Dilute
Hot water
Monoethanol amine (MEA)

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Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Pulse column
Spray column
Mixer settler
Baffle tower

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

None of these
Isothermal operation
Dilute solutions and isothermal operation
Dilute solutions

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