Lessons in elementary physics / by Balfour Stewart.

  • Balfour Stewart
Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: Lessons in elementary physics / by Balfour Stewart. Source: Wellcome Collection.

    481/502 page 461
    CHAPTER XI Lesson LH ENERGY OF CHEiMICAL SERA RATION— CONCL UDING REMARKS 450. Chemical Energy.—We have pointed oul in Arl. 103, hat in the efforts to separate an atom of carbon from one of 'xyjcen the eneiafy which we employ is transmnted into a pecies of potential molecular energ’y, jnst as when a stone is ep.arated from the earth and carried to the top of a house, the nerg'y employed in doing' this is transmuted into potential nergy. Further, we have seen that when this carbon is burned in he fire, this molecnlar potential etiergy is converted into nolecnlar energy of motion ; or, in other words, he;it is generated. It is n.'itnral, therefore, to expect llnil ;i definite cpiatitity of tirbon will, when burned, always lurnish a tlelinite cjiianlily of teat. 451. Thermo-chcmical Equivalents.—.Xmlriuvs in this Duntrv, .-md h'avre .'ind .Silberm.'um in l•'r.•nK■e, h.'ive investi- p-ited the ipi.'intity of he.nt given out by ehemie.'d eombin.'ilion, .ltd from their researches the following ttible h.is been lerived :—
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