313240214-Elements-of-Chemistry-Lavoisier_0147.pdf - The Project Gutenberg eBook of Elements of Chemistry by Mr Lavoisier Hence the caloric disengaged

313240214-Elements-of-Chemistry-Lavoisier_0147.pdf - The...

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08/08/2015 The Project Gutenberg eBook of Elements of Chemistry, by Mr Lavoisier. 147/229 Hence, the caloric disengaged from the iron by cooling 78° (175.5°) having melted 1.109795 pounds of ice, how much would have been melted by cooling 60° (135°)? This question gives the following statement in direct proportion, 78 : 1.109795 :: 60 : x = 0.85369. Dividing this quantity by the weight of the whole iron employed, viz. 7.7070319, the quotient 0.110770 is the quantity of ice which would have been melted by one pound of iron whilst cooling through 60° (135°) of temperature. Fluid substances, such as sulphuric and nitric acids, &c. are contained in a matras, Pl. VI. Fig. 9. having a thermometer adapted to the cork, with its bulb immersed in the liquid. The matras is placed in a bath of boiling water, and when, from the thermometer, we judge the liquid is raised to a proper temperature, the matras is placed in the calorimeter. The calculation of the products, to determine the specific caloric of these fluids, is made
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