SI Units           English Units
                   
    cp cv k cp cv   cp cv k
  Temperature, kJ/kg.K kJ/kg.K kJ/kg.K kJ/kg.K k kJ/kg.K kJ/kg.K  
  K Air   Carbon dioxide, CO2     Carbon Monoxide, CO  
  250 1.003 0.716 1.401 0.791 0.602 1.314 1.039 0.743 1.400
  300 1.005 0.718 1.400 0.846 0.657 1.288 1.040 0.744 1.399
  350 1.008 0.721 1.398 0.895 0.706 1.268 1.043 0.746 1.398
  400 1.013 0.726 1.395 0.939 0.750 1.252 1.047 0.751 1.395
  450 1.020 0.733 1.391 0.978 0.790 1.239 1.054 0.757 1.392
  500 1.029 0.742 1.387 1.014 0.825 1.229 1.063 0.767 1.387
  550 1.040 0.753 1.381 1.046 0.857 1.220 1.075 0.778 1.382
  600 1.051 0.764 1.376 1.075 0.886 1.213 1.087 0.790 1.376
  650 1.063 0.776 1.370 1.102 0.913 1.207 1.100 0.803 1.370
  700 1.075 0.788 1.364 1.126 0.937 1.202 1.113 0.816 1.364
  750 1.087 0.800 1.359 1.148 0.959 1.197 1.126 0.829 1.358
  800 1.099 0.812 1.354 1.169 0.980 1.193 1.139 0.842 1.353
  900 1.121 0.834 1.344 1.204 1.015 1.186 1.163 0.866 1.343
  1000 1.142 0.855 1.336 1.234 1.045 1.181 1.185 0.888 1.335
      Hydrogen, H2     Nitrogen, N2     Oxygen, O2  
  250 14.051 9.927 1.416 1.039 0.742 1.400 0.913 0.653 1.398
  300 14.307 10.183 1.405 1.039 0.743 1.400 0.918 0.658 1.395
  350 14.427 10.302 1.400 1.041 0.744 1.399 0.928 0.668 1.389
  400 14.476 10.352 1.398 1.044 0.747 1.397 0.941 0.681 1.382
  450 14.501 10.377 1.398 1.049 0.752 1.395 0.956 0.696 1.373
  500 14.513 10.389 1.397 1.056 0.759 1.391 0.972 0.712 1.365
  550 14.530 10.405 1.396 1.065 0.768 1.387 0.988 0.728 1.358
  600 14.546 10.422 1.396 1.075 0.778 1.382 1.003 0.743 1.350
  650 14.571 10.447 1.395 1.086 0.789 1.376 1.017 0.758 1.343
  700 14.604 10.480 1.394 1.098 0.801 1.371 1.031 0.771 1.337
  750 14.645 10.521 1.392 1.110 0.813 1.365 1.043 0.783 1.332
  800 14.695 10.570 1.390 1.121 0.825 1.360 1.054 0.794 1.327
  900 14.822 10.698 1.385 1.145 0.849 1.349 1.074 0.814 1.319
  1000 14.983 10.859 1.380 1.167 0.870 1.341 1.090 0.830 1.313