1. Not finding help here? Sign up for a free 30min 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!

How do I convert from kJ/kg to kJ/mol?

  1. Jul 29, 2015 #1
    I have researched that isobutanol has a heat of combustion of 35981 kJ/kg; however I need this to be in kJ/mol. From calculations, the molar mass of isobutanol was found to be 74g/mol. How would I go about in converting this?

    Relevant equations (?)
    #mols=mass/molarmass

    But how can I use this?
     
  2. jcsd
  3. Jul 29, 2015 #2

    marcus

    User Avatar
    Science Advisor
    Gold Member
    Dearly Missed

    74g/mol
    What is the heat of combustion of one gram?

    35.981 kJ per gram
    You get 35.981 kJ when you burn one gram, and a mole is 74 grams.
    So wouldn't burning a mole just give you 74 times as much as burning one gram?

    What is 35.981 multiplied by 74?
     
    Last edited: Jul 29, 2015
  4. Jul 31, 2015 #3
    Thanks! I get it now :)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: How do I convert from kJ/kg to kJ/mol?
  1. Converting Mol (Replies: 2)

Loading...