Data:Thermochemical properties of alkanes

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Name and state Formula M
g mol−1 		ΔfHo298
kJ mol−1 		ΔfGo298
kJ mol−1 		So298
J K−1 mol−1 		ΔcHo298
kJ mol−1 		Tm/K ΔfusHo
kJ mol−1 		Tb/K ΔvapHo
kJ mol−1 		Cp
J K−1 mol−1 		Cv
J K−1 mol−1 		Notes
Refs.
Methane g CH4 16.043 −74.87 −50.75 186.26 −890.4 90.6 0.9392 111 8.17 35 27 [1][2]
Ethane g C2H6 30.069 −84 −1560.3 89.9 2.857 184.6 14.7 53 44 [3][4]
Propane g C3H8 44.096 −104.2 −2219.5 85.5 3.52 231.1 19.4 75 66 [5][6]
Butane g C4H10 58.122 −126.3 −2877.9 136 4.66 273 22.44 96 88 [7][8]
Isobutane g C4H10 58.122 −135.9 −2868.3 113.6 4.54 261.5 21.30 95 86 [9][10]
Pentane l C5H12 72.149 −173.3 −9.5 263.1 −3509.2 143.4 8.408 309.2 25.79 167.9 [11]
Isopentane l C5H12 72.149 −178.8 260.7 −3503.8 113.4 5.14 301.1 24.69 164.7 [12]
Neopentane g C5H12 72.149 −168.1 −3514.1 256.7 3.26 282.6 22.75 [13]
Hexane l C6H14 86.175 −198.7 196.06 −4163 177.9 13.06 341.9 28.85 196.0 [14]
Isohexane l C6H14 86.175 −204.3 290.58 120 6.27 334 27.79 193.9 [15]
Heptane l C7H16 100.20 −224.8 328.5 182.6 14.06 371.5 31.77 224.7 [16]
Isoheptane l C7H16 100.20 −230.4 323.3 −4810.7 154.7 9.18 363.2 30.62 222.9 [17]
Octane l C8H18 114.23 −250.1 361.2 −5430 216.3 20.74 398.7 34.41 254.48 [18]
2-Methylheptane l C8H18 114.23 −255.2 356.4 −5465.5 163 11.92 390.7 33.26 251.8 [19]
2,2,4-Trimethylpentane l C8H18 114.23 −259.3 328.0 −5461.3 165.77 9.21 372.4 30.79 239.4 [20]

References

  1. ↑ Methane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/CH4/h1H4>. (accessed 2 April 2011).
  2. ↑ Methane. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=41>. (accessed 2 April 2011).
  3. ↑ Ethane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C2H6/c1-2/h1-2H3>. (accessed 2 April 2011).
  4. ↑ Ethane. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=28>. (accessed 2 April 2011).
  5. ↑ Propane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C3H8/c1-3-2/h3H2,1-2H3>. (accessed 2 April 2011).
  6. ↑ Propane. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=53>. (accessed 2 April 2011).
  7. ↑ Butane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C4H10/c1-3-4-2/h3-4H2,1-2H3>. (accessed 2 April 2011).
  8. ↑ Butane. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=8>. (accessed 2 April 2011).
  9. ↑ Isobutane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C4H10/c1-4(2)3/h4H,1-3H3>. (accessed 2 April 2011).
  10. ↑ Isobutane. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=38>. (accessed 2 April 2011).
  11. ↑ Pentane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3>. (accessed 2 April 2011).
  12. ↑ Butane, 2-methyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3>. (accessed 2 April 2011).
  13. ↑ Propane, 2,2-dimethyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C5H12/c1-5(2,3)4/h1-4H3>. (accessed 2 April 2011).
  14. ↑ Hexane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C6H14/c1-3-5-6-4-2/h3-6H2,1-2H3>. (accessed 2 April 2011).
  15. ↑ Pentane, 2-methyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C6H14/c1-4-5-6(2)3/h6H,4-5H2,1-3H3>. (accessed 2 April 2011).
  16. ↑ Heptane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3>. (accessed 2 April 2011).
  17. ↑ Hexane, 2-methyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C7H16/c1-4-5-6-7(2)3/h7H,4-6H2,1-3H3>. (accessed 2 April 2011).
  18. ↑ Octane. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C8H18/c1-3-5-7-8-6-4-2/h3-8H2,1-2H3>. (accessed 2 April 2011).
  19. ↑ Heptane, 2-methyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C8H18/c1-4-5-6-7-8(2)3/h8H,4-7H2,1-3H3>. (accessed 2 April 2011).
  20. ↑ Pentane, 2,2,4-trimethyl-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3>. (accessed 2 April 2011).
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