- Ekzotermik jarayon:
- H2 (g) + 1/2O2 (g) = H2O(s) + 284,2 kJ, yoki
- H2 (g) + 1/2O2 (g) = H2O(s) ; H = -284,2 kJ
- Endotermik jarayon:
- 1/2 N2 (g) + 1/2 O2 (g) = NO(g) - 180,75 kJ, yoki
- 1/2 N2 (g) + 1/2 O2 (g) = NO(g); H = +180,75 kJ
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