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Mixing Rule for Resistivity of Water

Suppose there are two water streams of resistivities R1 and R2, and we combine the streams. Is there a way to obtain the resulting stream's resistivity? (i.e., is there a mixing rule for resistivity?)

Thanks,

Eduardo Dozal
TAMU - Bryan, Texas
2003

If the two streams had the same conducting medium in them, I think averaging the conductivity would probably be applicable over a small range. But if they are dissimilar, all bets are off--mix an NaOH stream with an HCl stream and the conductivity of the mix will be lower than the conductivity of either component.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003

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