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Topic: Enthalpy of vaporization gasoline and 2-propanol  (Read 16232 times)

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Offline Yggdrasil

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Re: Enthalpy of vaporization gasoline and 2-propanol
« Reply #15 on: November 21, 2006, 07:42:27 PM »
1-propanol has a significantly higher molar mass than water, so it has stronger van der Walls forces.  The size difference is probably big enough to conteract the higher strenght of hydrogen bonds in water.
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Offline enahs

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Re: Enthalpy of vaporization gasoline and 2-propanol
« Reply #16 on: November 22, 2006, 12:21:26 AM »
What you are talking about is called propagation of error(s):
http://www.rit.edu/~uphysics/uncertainties/Uncertaintiespart1.html
Section 5. It is quite simple and just some basic rules to learn for different occasions, and it is perfectly valid for such a small data set too.
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