| Sr. No. | Fault Gas | Chemical formula | Enthalpy (kJ/mol) |
| 1 | Methane | CH4 | 77.70 |
| 2 | Ethane | C2H4 | 93.50 |
| 3 | Ethylene | C2H6 | 104.1 |
| 4 | Hydrogen | H2 | 128.5 |
| 5 | Acetylene | C2H2 | 278.3 |