Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 150
area A CD A, includedbetween the isothermal line A C, the isodynamic line A D,and the ordinate x.., measure the amount of internal poten-tial energy acquired; while the area B E F B, between theisothermal B F and the isodynamic line B F, will similarlymeasure this quantity, if the body is… … Fig. 14.—Internal work. B b A, A C, A D, B E, or B F. But the route A C, being iso-thermal, all heat transferred is exchanged for work; alongB F, all heat emitted comes from mechanical energy ex-pended ; along A D, all heat demanded for internal work issupplied from the original stock of sensible…
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