493 



Prof. R. Bunsen on the Temperature of the 



excess of n parts by weight of carbonic oxide ; and in experi- 

 ments 10 and 11, instead of this last an excess of nitrogen was 

 added : — 





Exp. 8. 



Exp. 9. 



Exp. 10. 



Exp. 11. 



h 



1-0000 



1-0000 



1-0000 



1-0009 







0-5715 



0-5715 



0-5715 



0-5715 



n 



1-0285 



47444 



1-8920 



1-8920 



P 



0-9851 



0-9791 



0-9934 



0-9802 



t°C. 



8 7602 



4-7008 



72760 



75720 



80 



7-7 



4-5 



100 



For experiments 8 and 9, 



<7 n = 0-1753, 



s n =0-9674; 



and for experiment 10, 



<r„=0-1717, 

 s n =0-9713. 



Of the following experiments 12 and 13 were made with pure 

 electrolytic detonating gas, 14 with the same gases and nitro- 

 gen : — 





Experiment 



Experiment 



Experiment 





12. 



13. 



14. 



h 



10000 



10000 



1-0000 







8-0000 



8-0000 



8-0000 



n 



0-0000 



0-0000 



26 5000 



P 



0-9736 



0-9736 



7-9684 



Pi 



97300 



9-5140 



7-2512 



fC. 



50 



100 



100 



o- A = 2-3910 

 a =0-1547 



The constants occurring in the equations used for calculating 

 these experiments are — 



s A = 0-06927 w = 29629 



s =1-1056 a =000366 



^=0-1717 s w = 0-9713 H = 1-00000 



0-^=0-3621 ^ = 0-62207 0=8-00000 



The next Table contains the calculations of several experiments 

 arranged according to the maximum temperature t ] —/which each 

 gas-mixture reduced to 0° will reach when burned in a closed ves- 

 sel*. Column III. gives the maximum temperatures for the mix- 

 tures mentioned in columns I. and II. 



* The diminution which the heat of combustion suffers from the small 

 loss of temperature {t) is omitted from the calculation as being inappreciable. 



