288 Table 273 



HEAT CAPACITIES, TRUE AND MEAN SPECIFIC HEATS, AND LATENT HEATS 

 AT FUSION (SEE PP. 285-287) 



The following data are taken from a research and discussion entitled " Die Temperatur- 

 Warmeinhaltskurven der technisch wichtigen Metalle," Wiist, Meuthen und Durrer, For- 

 schungsarbeiten herausgegeben vom Verein Deutscher Ingenieure, Springer, Heft 204, 1918. 



(a) There follow the constants of the equation for the heat capacity : W = a + bt -\- cf ; 

 for the mean specific heat : s—at~ l -\- b -f- ct\ and for the true specific heat : s' = b + 2ct; 

 also the latent heats at fusion. Much greater faith should be given to tables on pages 285 

 to 287. 



* Allotropic heat of transformation: Mn, 1070-1130 ; Ni, 320-330°; Co, 950-1100°; Fe, 

 725-785 ; 919 * 1; 1404-5° ± 0.5. 



(b) True Specific Heats 



For more elaborate tables and for all the elements in upper table, see original reference. 

 Smithsonian Tables. 



