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ill very rapidly for the hydrogen, but that tiie metal is disturbed. 

 It being sii|)posed here that the metal dissolves pretty rapidly, the 

 liquid iji the boundary layer will deviate also hei-e from that outside 

 the boundary layer with the concentration .I'l. The hydrogen piiase 

 is in internal ecpiilibrium, so that the coexisting liquid must be a 

 point of the line be. The disturbed metal phase is ennobled, and 

 has, therefore, a less negative electrical potential. Let this metal 

 phase be indicated by d' , then the three coexisting phases are 

 represented by 'the points d'c'e', and the line d'c' has ordy signifi- 

 cance for the case that the same disturbed metal phase could also 

 coexist with other electrolytes than c' . 



A third possibility remains, namely this that neither the metal 

 phase nor the gas phase assume internal equilibrium with sufficient 

 rapidity. In this case the metal will, therefore, contain too few ions 

 and electrons, in consequence of which its electrical potential has 

 become less negative, whereas the hydrogen phase contains too 

 many ions and electrons, from which results that its potential has 

 obtained a more negative value. 



E 



