From the combustion of phosphorus, as related in the foregoing experiments, it appears, that one pound of phosphorus requires 1 lib. 8 oz. of oxygen gas for its combustion, and that 2 libs. 8 oz. of concrete phosphoric acid are produced.
| The quantity of caloric disengaged by the combustion of one pound of phosphorus, expressed by the number of pounds of ice melted during that operation, is | 100.00000. |
| The quantity disengaged from each pound of oxygen, during the combustion of phosphorus, expressed in the same manner, is | 66.66667. |
| The quantity disengaged during the formation of one pound of phosphoric acid, | 40.00000. |
| The quantity remaining in each pound of phosphoric acid, | 0.00000(A). |
[Note A: We here suppose the phosphoric acid not to contain any caloric, which is not strictly true; but, as I have before observed, the quantity it really contains is probably very small, and we have not given it a value, for want of a sufficient data to go upon.—A.]
Combustion of Charcoal.
In the combustion of one pound of charcoal, 2 libs. 9 oz. 1 gros 10 grs. of oxygen gas are absorbed, and 3 libs. 9 oz. 1 gros 10 grs. of carbonic acid gas are formed.
| Caloric, disengaged daring the combustion of one pound of charcoal, | 96.50000(A). |
| Caloric disengaged during the combustion of charcoal, from each pound of oxygen gas absorbed, | 37.52823. |
| Caloric disengaged during the formation of one pound of carbonic acid gas, | 27.02024. |
| Caloric retained by each pound of oxygen after the combustion, | 29.13844. |
| Caloric necessary for supporting one pound of carbonic acid in the state of gas, | 20.97960. |
[Note A: All these relative quantities of caloric are expressed by the number of pounds of ice, and decimal parts, melted during the several operations.—E.]
Combustion of Hydrogen Gas.
In the combustion of one pound of hydrogen gas, 5 libs. 10 oz. 5 gros 24 grs. of oxygen gas are absorbed, and 6 libs. 10 oz. 5 gros 24 grs. of water are formed.
| Caloric from each lib. of hydrogen gas, | 295.58950. |
| Caloric from each lib. of oxygen gas, | 52.16280. |
| Caloric disengaged during the formation of each pound of water, | 44.33840. |
| Caloric retained by each lib. of oxygen after combustion with hydrogen, | 14.50386. |
| Caloric retained by each lib. of water at the temperature of Zero (32°), | 12.32823. |