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Mass Transfer

Mass Transfer
Leaching rate is independent of the

Temperature
Particle size
None of the listed here
Agitation

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Mass Transfer
Reverse osmosis is also called

Diffusion
Electrodilysis
Dialysis
Ultrafiltration

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Mass Transfer
If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.

2.5 to 3
3 to 4
5
1.2 to 1.5

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Mass Transfer
Molecular diffusivity of a liquid

Increases with temperature
Is independent of temperature
May increase or decrease with temperature
Decreases with temperature

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Mass Transfer
Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

Higher absolute (specific) humidity
Higher dew point
Higher relative humidity
Higher wet bulb temperature

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Mass Transfer
Raoult's law is applicable to the

Mixture of water and alcohol
Ideal solutions
Non-ideal gases
Real solutions

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