1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Internal combustion engine problem.

  1. Feb 22, 2008 #1
    An internal combustion engine runs on octane, the enthalpy of combustion is -5512 kJ/mol. The mass of 1 gallon of fuel is 3 kg.
    The engine temperature is 2000 degrees C and the exit temperature is 800 degrees C. What is the work done?

    The total enthalpy is -145053 kJ. The total number of moles of octane is 26.3. The molar mass of octane is .1142 kg/mol

    I spent a good deal of time on this, and I am not sure how to conceptualize this problem.

    *I edited the problem so you don't have to read the poorly written original problem. *
    Last edited: Feb 22, 2008
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Internal combustion engine problem.