Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

High pressure gases specific heat

  1. Nov 23, 2008 #1
    I want to calculate the reaction heat in a ammonia convertor but I need some
    specific heats of N2,NH3,Ar and CH4 at 500°C and 200bar. I could find data at 500°C but not at that pressure.

    thanks Stefaan
  2. jcsd
  3. Nov 23, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Hi Stefaan,
    I was going to suggest the NIST web site but I see they don't go up that high in pressure for ammonia at least.

    Values below are in Btu/lbm-F.

    Fluid / Cv / Cp
    Nitrogen / .1977 / .2738
    Ammonia / .6080 / .7906
    Argon / .07550 / .1314
    CH4 / .8018 / .9490
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: High pressure gases specific heat
  1. Specific heat of Al (Replies: 1)