222 W. G. Mixter — Heat of Coinbxistion of Hydrogen. 



Minutes. Temperature. Temperature interval. 



15-074 17-903 — 15-082 + 0-002=l-823° 



1 15-078 



2 15-082 Observed heat, l720-4xl-823 = 3136-3« 



3 17-883 Correction to calorie at 20° 2-3' 



4 17-903 



5 17-901 3138-6'^ 



6 17-899 From these data we have for the value 



7 17-897 ofQ = 34483^ 



Experiment S.—Q.^.^ 1108-3°^ at 17-9° and 773-2°^"^, weigh- 

 ing 0-1004 gram ; weight of like volume of hydrogen 0*09507 

 gram. Calculated amount of hydrogen present 0-09469 gram. 

 Water and water equivalent of calorimeter 1765-4 grams. 



Temperature interval. 



18-454 — 16-643 = 1-811° 



Observed heat, 1765 -4 X 1-81 1 = 3 197-3° 

 Correction to calorie at 20° 1-6° 



utes. 



Temperature. 







16-631 



1 



16-637 



2 



16-643 



3 



18-454 



4 



18-454 



5 



18-454 



6 



18-456 



3198-9<= 

 Q = 34395<= 



Experiment ^.— Gas, 1108-6°° at 18-5° and 751-3'"°^, weigh- 

 ing 0'095 gram ; weight of like volume of hydrogen 0-09221 

 gram. Calculated amount of hydrogen present 0-09202 gram. 

 Water and water equivalent of calorimeter 1733*3 grams. 



Minutes. Temperature. Temperature interval. 



17-109 18-896-17-115 + 0'004=l-785° 



1 17-112 



2 



17115 



3 



18-896 



4 



18-896 



5 



18-892 



6 



18-889 



7 



18-884 



Observed heat, 1733-3 Xl-785=:3093-9° 

 Correction to calorie at 20° 1-2° 



3095-1° 

 Q = 34254° 



Experiment 5.— Hydrogen, 1108*8°° at 19-3° and 767*8"^°" ; 

 calculated weight 0*09899, observed 0-095 gram. Water and 

 water equivalent of calorimeter 1716 grams. 



Temperature interval. 

 18-244 — 16-429 4-0-005 = 1-820° 



Observed heat, 1 716 X 1 •82 = 3123-1° 

 Correction to calorie at 20° 1-5° 



Minutes. 



Temperatu 







16-427 



1 



16-428 



2 



16-429 



3 



18-244 



4 



18-244 



5 



18-234 



6 



18-234 



7 



18-225 



8 



18225 



9 



18-217 



3124-6* 

 Q = 33854° 



