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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)

μ²
√μ
μ
1/μ

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Mass Transfer
Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.

Critical
Bound
Unbound
None of these

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Mass Transfer
In a counter-current extractor, as the axial mixing increases, the extraction efficiency

Decreases
Remains unchanged
Depends on the pressure of the system
Increases

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Mass Transfer
What is the degree of freedom of an absorption process in which only one component is transferred between phases?

2
3
1
4

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Mass Transfer
Rate of leaching increases with increasing

Viscosity of solvent
Size of the solid
Temperature
Pressure

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Mass Transfer
The most efficient cooling tower out of the following is

Induced draft
Atmospheric
Forced draft
Natural draft

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