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One Joule is 1 Newton Metre, ie the work done or energy transfered to an object when a one Newton force acts on it over one metre. It can also be defined as the heat energy dissipated by a current of one ampere passing through a one Ohm resistor for one second
The International Committee for Weights and Measures have defined one cal15 is the ammount of heat energy needed to raise the temperature of 1g of water from 14.5°C to 15.5°C
| Joules | Calories (15°C,CIPM, 1950) |
|---|---|
| 0J | 0.00cal15 |
| 1J | 0.24cal15 |
| 2J | 0.48cal15 |
| 3J | 0.72cal15 |
| 4J | 0.96cal15 |
| 5J | 1.19cal15 |
| 6J | 1.43cal15 |
| 7J | 1.67cal15 |
| 8J | 1.91cal15 |
| 9J | 2.15cal15 |
| 10J | 2.39cal15 |
| 11J | 2.63cal15 |
| 12J | 2.87cal15 |
| 13J | 3.11cal15 |
| 14J | 3.34cal15 |
| 15J | 3.58cal15 |
| 16J | 3.82cal15 |
| 17J | 4.06cal15 |
| 18J | 4.30cal15 |
| 19J | 4.54cal15 |
| Joules | Calories (15°C,CIPM, 1950) |
|---|---|
| 20J | 4.78cal15 |
| 21J | 5.02cal15 |
| 22J | 5.26cal15 |
| 23J | 5.50cal15 |
| 24J | 5.73cal15 |
| 25J | 5.97cal15 |
| 26J | 6.21cal15 |
| 27J | 6.45cal15 |
| 28J | 6.69cal15 |
| 29J | 6.93cal15 |
| 30J | 7.17cal15 |
| 31J | 7.41cal15 |
| 32J | 7.65cal15 |
| 33J | 7.88cal15 |
| 34J | 8.12cal15 |
| 35J | 8.36cal15 |
| 36J | 8.60cal15 |
| 37J | 8.84cal15 |
| 38J | 9.08cal15 |
| 39J | 9.32cal15 |
| Joules | Calories (15°C,CIPM, 1950) |
|---|---|
| 40J | 9.56cal15 |
| 41J | 9.80cal15 |
| 42J | 10.03cal15 |
| 43J | 10.27cal15 |
| 44J | 10.51cal15 |
| 45J | 10.75cal15 |
| 46J | 10.99cal15 |
| 47J | 11.23cal15 |
| 48J | 11.47cal15 |
| 49J | 11.71cal15 |
| 50J | 11.95cal15 |
| 51J | 12.18cal15 |
| 52J | 12.42cal15 |
| 53J | 12.66cal15 |
| 54J | 12.90cal15 |
| 55J | 13.14cal15 |
| 56J | 13.38cal15 |
| 57J | 13.62cal15 |
| 58J | 13.86cal15 |
| 59J | 14.10cal15 |