( 339 ) 



111 any case we iiiav coik-IikIc llial llic (lidrrciili.il ('(|iinli(Mi (II) 

 is iiicouipU'tc and llial il would Uc itctlcr lo ui\(' il die fonii for 

 a reai'tioii ol" a IuuIku' oi-dci'' ). 



</,/■ 



= (/-^ ± /..^ ,•)(„—,,■) A (l:;) 



(If 



which corrcsixiiHls w idiiii ('crlaiii liiiiils w idi ('\|H'ri('iK'e "). 



(u'lierallv diis rclalioii is ('\|)ressi'd hv die (M|iiad(>ii: 



1> \' /• 



(II) 



/', / /■, 



From 1\\MM Ann's ") ('.xjx'riiuciils widi ciiiidsiii it appeal's dial in 

 any case 



N — F {„./>) (i:.) 



It is also iniportant lo observe that /\ is apparcnlly only chan.ueaUle 

 Avidiin the liniils of the e.xperimenlal errors, whetluM- we start IVoni 

 the eoiieenlration a^ of the suhslanees to he iii\'erle(l or w lielher w c 

 choose as the slartinu' point the concentralioii ii„ -\- ,/■, in w liieli ti., <^ a^ 

 and .'■ corresponds w illi an amount oC iiix'erted product eorrespoiidinu- 

 widi ((^—(f.,: IIknui has already [)ointed this oiil for in\ertin. 



From = consljint we ohtain the somew hal unexpected result ; 



1 



in \\liich <( and a represent the concentrations of ihc siihstances 

 underu-oinu- inxcrsion, /■, and /•.,, y^ and y. Ih»' corresponding- xclocily 

 constants. 1 hope sjiortly to re\ert to this matter. 



The matter comminiicated \\c\v has no connection with the later 

 ibi'innlation of IIknüi'i which I cannot yet accept as concliisi\-e. 



'Itiu'clit, Lal>. lien, and inoru'. ('lieinisti-\ rni\-ersil\-. 



1) The lorniula — (/• /•., .') (<i — .r) = /„ — -'' (" -• ■') lepiesi'iils 



iiult'cd an e.\))ressioii lor a hiiiKilccuiar reactinn. 



~) Compare, Zeitsclir. Iiii' piiysioloiiiselie (liiciiiic. 37, I-")'.!. (]'.H)-2). 



There is an eviilenl cuiiiieetiitn with Hon'.sK.M.v"s t'Xpeiiiii'Mils (Zeilselir. Iiir [iliysi- 

 kalisclie Chemie) 17, 1 (IS'.),"")) hut il seems to me llial we must tio! Iliiiik with 

 HöBEii (Pliysikalisclie Cliemie iler Zelleii mid (lewehc, I'.MI^ p. oli'l, d aiiv diss i- 

 eialion of the lermeiil, hut rather of llial oi' the suhslaiices dissolved llieieii:. Like 

 HüBKK however, I allucli no pailieiilar iiujioi taiice to an explanation ol tlii> kind 

 hased on analogy. 



•') Zcitschr. tiir pliysikalisehc (:ii.'iui<'. 18. i-J<i. (|S1).',|. 



*) Lois générales, p. 1()7. 



