132 Mixter — Combustion of Silicon and Silicon Carbide. 



Experiment 2. 



Carbon . . . ^ 1-2214 grams. 



" not burned —0-0107 " 



" burned 1-2 107 " 



Iron for ignition O'OUO " 



Sodium peroxide 21 Ct 



Water equivalent of system 3244 " 



inutes. 



Temperature. 







18-241 



1 



1 8-243 



2 



18-245 



15 



22-405 



16 



22-404 



17 



22-399 



18 



22-397 



19 



22-394 



20 



22-391 



21 



22-388 



Temperature interval. 

 22-405 -18-245 + 0-032 = 4-1 92 c 



Heat observed 3244x4-192=13599= 

 " of oxidation of iron — 96 c 



13503 c 



For 1 gram of carbon 11149° 

 The motor stopped for a time after the 

 ignition, hence the interval before the 

 maximum temperature was observed was 

 longer than usual. 



Experiment 8. 



Silicon _ . 1 -2320 grams. 



" not burned.. —0-0003 " 



" burned 1-2317 " 



Iron for ignition .... 0-058 " 



Sodium peroxide 12-5 " 



Water equivalent of system .3380-6 " 



Minutes. Temperature. Temperature interval. 



18-176 21-242 — 18-184 + 0.009 = 3-067° 



1 18-180 



2 18-184 Heat observed, 3380-6 X 3-067 = 10368 c 



8 21-242 " of oxidation of iron — 93 c 



9 21-240 



10 21-238 10275 c 



11 21-236 



12 21-234 For 9 grams of silicon 8342 c 



13 21-233 



