Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 423
one twenty-fifth part of thesurface can at any instant be in contact with the acid, anddiffusion must act, as in all other electrochemical cells, tobring more acid to the terminal surfaces as it is consumed,and also to bring more acid into the spongy mass fromwithout. Fig. 7 represents, on a… … and the small circles to represent molecules of H0SO4diffused through the solution. It is apparent that only asmall portion of the surface of the electrode is in - contactwith the molecules of acid. It is also apparent that thespaces between the filaments of lead cannot at one timecontain a…
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