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Mass Transfer

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

1/T
T
√T
T²

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

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

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Mass Transfer
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

K ∝ D1.5
K ∝ D2
K ∝ √D
K ∝ D

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Mass Transfer
Schmidt number is given by

Μ/ρDAB
Re.Pe
Re/Pe
Sh x Pe

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Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

Gm
Litre
m³
Kg

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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)

μ
1/μ
μ²
√μ

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