32 



ART. 10. — K. IKEDA : STUDIES ON THE 



a form which is identical to 

 the reaction isochor of van 

 t'Hoff. 



This equation can be 

 integrated when Q is given 

 as function of temperature. 

 Let us assume as an approxi- 

 mation, that Q is independent 

 of temperature. Then 



K 



In 



^=l(i-4->-(") 



where /. stands for the value 

 of K m the melt of the pure 

 compound, according to equa- 

 tion (16), and Ji stands for 

 the melting point of the com- 

 pound. 



When tlie solid is a 

 component, then 



y. = 1 



and K = C\, 



and equation (19) assumes 

 the form (17), which is ap- 

 plicable to systems of any ^ 

 number of components. 



Several cases in ^Yhich 

 equation (17) represents the 

 actual course of fusion curves 

 in binary systems have been 



