Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electrolyte conductivity to temperature

  1. Sep 12, 2010 #1
    I think: Two reasons, bad overlapping orbitals due vibrattions and high electron population in conduction band will decrease conductivity in metals if you increase T.
    Last edited: Sep 13, 2010
  2. jcsd
  3. Sep 13, 2010 #2
    You may have two concepts mixed in your post: electrolyte (liquid) and electrical conductor (solid). The dependency of conductance on temperature is not quite so simple as you suggest, depending on just what you meant.

    If this is what you really meant, then the conductivity generally INCREASES with temperature because the free ions can move more easily in liquid..they are mort thermally active. Most chemical reactions take place more readily at higher temperatures. That's why automobile batteries, for example, produce more power in warm rather than cold temperatures. In fact CCA (cold cranking amps) is a measure of how well a battery produces power at zero degrees farenheit because they are much weaker as temperatures decline substantially.

    For solid conductors, Wikipedia shows this:

    but there are exceptions:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook