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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
1/μ
√μ

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Mechanical draft cooling tower
Rotating disc contactor
Rotary dryer
Multiple effect evaporator

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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
At a fixed total pressure, humidity depends only on the

Heat capacity of the vapour
None of these
Partial pressure of vapour in the mixture
Density of the vapour

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Mass Transfer
Decoction refers to the use of solvent

At its boiling point
At ambient temperature
None of these
In its vapor form

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Latent heat
Humid heat
Sensible heat
Specific heat

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