LEWIS. — A NEW SYSTEM OF THERMODYNAMIC CHEMISTRY. 293 



( 



N^ In $1 + ^\^ In ^2 + • 

 For a perfect dilute solution, 



= 0. 



XVIII 



F,T 



(^ 



dKi 





XX* 



P, T 



For the most general case of chemical equilibrium at a given 

 temperature, 





= A" (a constant). 



XXIII 



For the change in the equilibrium ratio of any reaction with the 

 temperature, 



dlnK U 



dT in 



,'i-2 



XXIV 



For the increase in free energy when one mol of a given substance 

 passes from one state to another, 



A5 = i?rin^- XXV 



For the increase in free energy in any chemical reaction, 



Ar^ = IlT\n^^, 



-BTlnK. 



XXVI 



A'=B' 



For the electromotive force of any reversible cell, 



mF niF flt^- • • 



For the single potential at any electrode, 



XXVIII 



XXIX 



