78 



THE ROYAL SOCIETY OF CANADA 



Experiments. Sample Xo. 1. Gas used: Oxygen 

 In each of these experiments the gas was pumped off in two stages: the first with tlie sample 

 at room temperature and the second after the sample had been heated to a certain temperature. 

 Care was taken to keep this temperature the same for all experiments. The gas collected in the 

 two stages was separately examined for CO. Sample No. 1 was heated to 475°C. 



°C 

 168.0 

 196.0 

 168. 

 216.0 

 231.0 



Gas 

 adsorbed 



c.c. N.P.T. 

 479.7 

 532.5 

 451.9 

 327.3 

 334.0 



Heat per 



gas 



sample 



Calories 

 121.7 



127.4 

 121.2 



87.5 

 84. 5 



Heat per 

 c. c.gas 



Calories 

 6.7 

 6.3 

 7.1 

 7.1 

 6.7 



Total 

 Heat 



Calories 

 3199.4 

 3351.8 

 3188.3 

 2338. 1 

 2256.3 



1st test 

 for CO2 



c.c. N.P.T. 



188.0 

 25.9 

 31.9 



2nd test 

 for CO2 



c.c. N.P.T. 



28.6 

 54.9 



Heat due 



to CO2 



Calories 



822.2 

 235.1 

 379.3 



Difference 

 from total 



Calories 



2366. 1 

 2103.0 



1877.0 



ExPERiMRNT 4. Sample No. 1. Gas used : Carbon dioxide 



