LEWIS. — A NEW SYSTEM OF THERMODYNAMIC CHEMISTRY. 298 



For a perfect dilute solution, 



\ *Wi /p, y 



For the most general case of chemical equilibrium at a given 

 temperature, 



f - = K (a constant). XXIII 



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

 temperature, 



d\\\K U VVTV 



' / 2 



dT Rl 



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

 passes from one state to another, 



A$ = BT\n-- XXV 



i 



For the increase in free energy in any chemical reaction, 



A° ^i' . . . 

 Aft = RThi l - - /.Tin K. XXVI 



For the electromotive force of any reversible cell, 



E = ~yn K - -~\n g§f^ • XXVIII 



For the single potential at any electrode, 



RT, £ 



t 



E=^\u^- XXIX 



