| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| enthalpy change of combustion units | 1.2 | 0.5 | 9098 | 46 | 35 |
| enthalpy | 0.51 | 0.5 | 2838 | 25 | 8 |
| change | 1.43 | 0.8 | 8889 | 10 | 6 |
| of | 0.99 | 0.4 | 486 | 74 | 2 |
| combustion | 1.58 | 0.9 | 4671 | 21 | 10 |
| units | 1.53 | 0.4 | 964 | 58 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| enthalpy change of combustion units | 1.04 | 0.1 | 3496 | 76 |
