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Energy in gasoline

  1. Oct 3, 2008 #1
    1. The problem statement, all variables and given/known data
    Estimate the amount of energy (in J) in a gallon of gasoline by imagining that there is about 4 eV of energy for every carbon atom.


    3. The attempt at a solution
    I don't know of any equations that would relate eV to J. But I do know that there are 6.022 x 10^23 atoms/mole.

    How do I get started on this?
     
  2. jcsd
  3. Oct 3, 2008 #2

    LowlyPion

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    Homework Helper

    First you will need to know what the chemical formula for gasoline is won't you? (Maybe use octane as representative?) Then know much by weight in a gallon.
    http://en.wikipedia.org/wiki/Gasoline#Density
    Then how many moles that represents.
    Then count your carbon footprint and multiply by 4 eV
    And then convert to Joules.
     
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