Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Chemical combination or molecular association between unlike molecules takes place in the formation of solution
Attractive forces between like and unlike molecules in the solution are approximately equal
Component molecules are nonpolar
Size of component molecules are not equal

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Mass Transfer
Blowdown in a cooling tower

All of these
Increases the scale forming tendencies of water
Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities
Is undesirable

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