680 
MR. H. B. DIXON ON CONDITIONS OF CHEMICAL CHANGE 
Experiment 7*2 is here given in full :— 
Composition of mixture. 
Carbonic oxide. 73‘19 
Hydrogen .. 14*36 
Oxygen. 12*45 
100*00 
Volumes reduced to 0° C. and 760 millims. 
Cub. centims. 
Volume of mixture taken. 22*075 
„ after explosion. 17*503 
., „ absorption. 13*836 
,, ,, addition of oxygen . . . 28*055 
„ ,, explosion. 19*829 
„ „ absorption. 7*357 
First contraction =4*572 = c 
Second „ =8 *226 = 0 ' 
0=|(c+&) = 2*746 /t=|jc 
First absorption = 3*667 = k 
Second „ = 12*472=&' 
-|} = 1-826 
A'=f{c'—1'} = 1'327 
Total hydrogen =3*153 Total carbonic oxide =16*139 
Composition of mixture by 
analysis. 
CO . . 
16*139 
73*12 
h 3 . . 
3*153 
14*28 
0 3 . . 
2*746 
12*44 
22*038 
99*84 
By calculation from original mixture 22*075 cub. centims. contain 16*159 cub. centims. 
carbonic oxide and 3*169 cub. centims. hydrogen :— 
16*159 3*169 
12*472 1*327 
3*687 calculated 16*159 1*842 calculated h 3*169 
3*667 found 3*677 1*826 found h 1*834 
3*677 mean k 
12*482 mean k' 
1*834 mean h 
1*335 mean li 
