August 2018
Intermediate to advanced
296 pages
7h 57m
English
Table B.1 Enthalpy of formation, reaction and HHVs for selected compounds at 25 °C, 1 atm.
Source: Adapted from Moran, Shapiro, Boettner and Bailey (2012) Principles of Engineering Thermodynamics, 7th edition, John Wiley & Sons.
| Substance | Formula | Molar mass M (kg/kmol) | Higher heating value HHV (kJ/kg) | ||
| Carbon | C (s) | 12.01 | 0 | 32 770 | −393 600 |
| Hydrogen | H2 (g) | 2.016 | 0 | 141.789 | −285 800 |
| Nitrogen | N2 (g) | 28.01 | 0 | — | — |
| Oxygen | O2 (g) | 32 | 0 | — | — |
| Carbon monoxide | CO (g) | 28.01 | −110 530 | — | — |
| Carbon dioxide | CO2 (g) | 44.01 | −393 520 | — | — |
| Water | H2O (g) | 18.02 | −241 820 | — | — |
| Water | H2O (l) | 18.02 | −285 830 | — | — |
| Hydrogen peroxide | H2O2 (g) | 34.02 | −136 310 | — | — |
| Ammonia | NH3 (g) | 17.03 | −46 190 | — | — |
| Methane | CH4 (g) | 16.04 | −74 850 | 55 510 | −890 400 |
| Acetylene | C2H2 (g) | 26.04 | +226 730 | 49 910 | −1 299 700 |
| Ethylene | C2H4 (g) | 28.05 | +52 280 | 50 300 | −1 411 000 |
| Ethane | C2H6 (g) | 30.07 | −84 680 | 51 870 | −1 599 900 |
| Propylene | C3H6 (g) | 42.08 | +20 410 | 48 920 | −2 058 600 |
| Propane | C3H8 (g) | 44.09 | −103 850 | 50 350 | −2 220 000 |
| Butane | C4H10 (g) | 58.12 | −126 150 | 49 500 | −2 877 000 |
| Pentane | C5H12 (g) | 72.15 | −146 440 | 49 010 | −3 536 100 |
| Octane | C8H18 (g) | 114.22 | −208 450 | 48 260 | −5 512 300 |
| Octane | C8H18 (l) | 114.22 | −249 910 | 47 900 | −5 471 100 |
| Benzene | C6H6 (g) | 78.11 | +82 930 | 42 270 | −3 301 700 |
| Methyl alcohol | CH3OH (g) | 32.04 | −200 670 | 23 850 | −764 200 |
| Methyl alcohol | CH3OH (l) | 32.04 | −238 810 | 22 670 | −726 300 |
| Ethyl alcohol | C2H5OH (g) | 46.07 | −235 310 | 30 590 ... |
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