In a counter-current liquid extractor

1.	In a counter-current liquid extractor
A.	both liquids flow at fixed rate.
B.	both liquids can have any desired flow rate.
C.	only one of the liquids may be pumped at any desired rate.
D.	liquid's flow rate depends upon the temperature and pressure.
Answer» D. liquid's flow rate depends upon the temperature and pressure.

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In a counter-current liquid extractor

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