Mass Transfer
In a counter-current liquid extractor

Both liquids can have any desired flow rate
Liquid's flow rate depends upon the temperature and pressure
Both liquids flow at fixed rate
Only one of the liquids may be pumped at any desired rate

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

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

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