Viscosity as a function of temperature

Discussion in 'Physics' started by boks, Mar 18, 2009.

  1. boks

    Thread Starter Active Member

    Oct 10, 2008
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    Is there an equation that relates viscosity of water to temperature? If not, is there a reliable table somewhere on the internet? I'm searching for the viscosity at 20°C ± 3°C.
     
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    For most liquids De Guzman's equation is used.

    viscocity = A exp(B/RT)

    Where A, B are +ve constants.

    Unfortunately water is the odd man out due to hydrogen bonding and you get funny results for A and B.
     
  3. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
    287
    Water is strange stuff by just about any measuring stick. Odd that there's so much of it! :)
     
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