| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| theory of energy conversion | 1.54 | 0.3 | 8265 | 35 | 27 |
| theory | 1.15 | 0.9 | 4730 | 81 | 6 |
| of | 1.23 | 0.1 | 1814 | 68 | 2 |
| energy | 0.81 | 0.6 | 2669 | 40 | 6 |
| conversion | 0.18 | 0.7 | 1144 | 72 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| theory of energy conversion | 1.33 | 0.8 | 7187 | 80 |
