> From: Craig Bingman <cbingman at netcom_com>
> Date: Mon, 12 Aug 1996 00:44:33 -0700 (PDT)
> Conductivity is actually closer to "everything except water" in that it
> measures the conductivyt in water caused by ions. So it is sort measures
> "everything ionic in water." Too bad some ions are substantially more
> mobile in water than others.
Which ions are more mobile? Perchance, is there a table giving
Are charged ions more mobile than say dissolved oxygen? What makes
ions move about? I presume its more than random kinetic motion
(Brownian motion) in the absence of current (as in a substrate).
The reason I ask about this is it has a bearing on how quickly
nutrients and oxygen and CO2 diffuse through the interstitial
water of the substrate.