Jones Beene wrote:
Ed,
When extra H+ or OH- are added to make the fluid conductive, the H2O
is no longer pure and at unit activity. In essence, energy has been
added that has partially split the water into H and O. As a result,
less energy is required as voltage to complete the process. If the
energy added to the solution in making and adding the H+ or OH- is
taken into account, the correct enthalpy of H2O will be obtained. In
other words, an apparent OU is only caused by not taking all energy
sources into account.
Yes...but... it's a little bit like "the gift that keeps on giving"
isn't it?
...in that when done properly, you only add the electrolytes once, and
following that, the lowered unit effects continue-on for an extended
time period.
Well not quite. As water is electrolyzed, the concentration of added
salt increases. I suspect that the minimum voltage occurs only at
particular concentration, with the "ideal" voltage being required at low
concentrations and a much larger voltage required at very high
concentrations. Somewhere between these extremes, the voltage goes
through a minimum. As usual, nature does not continue to give but
always takes away.
regards,
Ed
Jones
BTW... (OT) ... as a curiosity, I was trying to remember the originator
of the now-trite catch-phrase: "give the gift that keeps on giving"
... My earliest recollection from years-past is an association with
Hallmark Cards - the masters of marketing, but they probably lifted it
from literature. Does anyone know? And please, no references to
so-called "social" diseases are necessary at this time ...
