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Mass Transfer

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

√μ
μ²
1/μ
μ

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Increasing pressure
Decreasing pressure
No means
Increasing temperature

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Mass Transfer
Mass transfer co-efficient of liquid is

Not affected by the temperature
Affected much less by temperature than that for gases
None of these
Affected more by temperature than that for gases

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Mass Transfer
Chemisorption (chemical adsorption) is

An irreversible phenomenon
Characterised by adsorption of heat
A reversible phenomenon
Same as "Van der Waals" adsorption

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T⁴
T²
√T
T

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Induced draft cooling tower
None of these
Natural draft cooling tower
Spray chamber

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