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One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere. The Btu (mean) uses a result averaged over water temperatures 0 to 100 °C (32.0 to 212.0 °F) which is approx. 1055.87 J
One erg is equal to the work done by a force of one dyne, when its point of application moves 1cm in the direction of action
| Btu (mean) | Ergs |
|---|---|
| 0Btu (mean) | 0.00erg |
| 1Btu (mean) | 10558699989.21erg |
| 2Btu (mean) | 21117399978.41erg |
| 3Btu (mean) | 31676099967.62erg |
| 4Btu (mean) | 42234799956.82erg |
| 5Btu (mean) | 52793499946.03erg |
| 6Btu (mean) | 63352199935.24erg |
| 7Btu (mean) | 73910899924.44erg |
| 8Btu (mean) | 84469599913.65erg |
| 9Btu (mean) | 95028299902.85erg |
| 10Btu (mean) | 105586999892.06erg |
| 11Btu (mean) | 116145699881.26erg |
| 12Btu (mean) | 126704399870.47erg |
| 13Btu (mean) | 137263099859.68erg |
| 14Btu (mean) | 147821799848.88erg |
| 15Btu (mean) | 158380499838.09erg |
| 16Btu (mean) | 168939199827.29erg |
| 17Btu (mean) | 179497899816.50erg |
| 18Btu (mean) | 190056599805.71erg |
| 19Btu (mean) | 200615299794.91erg |
| Btu (mean) | Ergs |
|---|---|
| 20Btu (mean) | 211173999784.12erg |
| 21Btu (mean) | 221732699773.32erg |
| 22Btu (mean) | 232291399762.53erg |
| 23Btu (mean) | 242850099751.73erg |
| 24Btu (mean) | 253408799740.94erg |
| 25Btu (mean) | 263967499730.15erg |
| 26Btu (mean) | 274526199719.35erg |
| 27Btu (mean) | 285084899708.56erg |
| 28Btu (mean) | 295643599697.76erg |
| 29Btu (mean) | 306202299686.97erg |
| 30Btu (mean) | 316760999676.18erg |
| 31Btu (mean) | 327319699665.38erg |
| 32Btu (mean) | 337878399654.59erg |
| 33Btu (mean) | 348437099643.79erg |
| 34Btu (mean) | 358995799633.00erg |
| 35Btu (mean) | 369554499622.20erg |
| 36Btu (mean) | 380113199611.41erg |
| 37Btu (mean) | 390671899600.62erg |
| 38Btu (mean) | 401230599589.82erg |
| 39Btu (mean) | 411789299579.03erg |
| Btu (mean) | Ergs |
|---|---|
| 40Btu (mean) | 422347999568.23erg |
| 41Btu (mean) | 432906699557.44erg |
| 42Btu (mean) | 443465399546.65erg |
| 43Btu (mean) | 454024099535.85erg |
| 44Btu (mean) | 464582799525.06erg |
| 45Btu (mean) | 475141499514.26erg |
| 46Btu (mean) | 485700199503.47erg |
| 47Btu (mean) | 496258899492.67erg |
| 48Btu (mean) | 506817599481.88erg |
| 49Btu (mean) | 517376299471.09erg |
| 50Btu (mean) | 527934999460.29erg |
| 51Btu (mean) | 538493699449.50erg |
| 52Btu (mean) | 549052399438.70erg |
| 53Btu (mean) | 559611099427.91erg |
| 54Btu (mean) | 570169799417.12erg |
| 55Btu (mean) | 580728499406.32erg |
| 56Btu (mean) | 591287199395.53erg |
| 57Btu (mean) | 601845899384.73erg |
| 58Btu (mean) | 612404599373.94erg |
| 59Btu (mean) | 622963299363.14erg |