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Surface tension again

  1. Nov 17, 2008 #1
    At critical temperature, the surface tension becomes zero.
    What happens to contact angle at critical temperature?
  2. jcsd
  3. Nov 17, 2008 #2

    Andy Resnick

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    It's probably not a meaningful concept. Since there is no energy cost associated with creating a material interface (and no pressure jump across a curved surface) it's not clear what 'wetting' means.
  4. Nov 18, 2008 #3
    thx.. i think my understanding is getting better now
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