DATA FOB EQUATIONS OF DECOMPOSITION. 503 



10. Equation (3), 



20T0 3 -f 30 = K 2 C0 3 + CO + C0 2 + 2N, 



represents 119 grins, of matter; or, for 1 kgm., 106 grms. of 

 carbon and 894 grms. of nitre. The products being, 580 grms. 

 C0 3 K 2 , 117-5 grms. CO, 117'5 grms. N, 185 grms. C0 2 . 



The transformation liberates + 801 Cal. at constant pressure, 

 + 80 '9 Cal. at constant volume ; or, for 1 kgm., 673 Cal. at con- 

 stant pressure, 680 Cal. at constant volume. 



The reduced volume of the gases = 33'5 litres ; or, for 

 1 kgm., 281-5 litres. 



_, 281-5 atm. 



Permanent pressure = Tr^r, with the usual reservation. 



n U'Jo 



Theoretical temperature = 3458. 



3847 atm. 



Theoretical pressure = ^r~' 



n - 0-26 



11. Equation (4), 



2KNO 3 + S -f 2C = K 2 S0 4 -f 2CO -f 2N, 



represents 129 grms. of matter; or, for 1 kgm., 124 grms. of 

 sulphur, 93 grms. of charcoal, and 783 grms. of nitre. The 

 products being, 675 grms. S0 4 K 2 , 217 grms. CO, 108 grms. N. 



The transformation liberates 78'2 Cal. at constant pressure, 

 79-0 Cal. at constant volume ; or, for 1 kgm., 606 Cal. at con- 

 stant pressure, 612 Cal. at constant volume. 



The reduced volume of the gases = 3 3 '5 litres ; or, for 

 1 kgm., 260 litres. 



260 atm. 

 Permanent pressure = - with the usual reservation. 



Theoretical temperature = 3320. 



_ -. . 3422 atm. 

 Theoretical pressure = ?VOK"' 



12. Equation (5), 



2KN0 3 + S + C = K 2 S0 4 + C0 2 + 2N, 



represents 123 grms. of matter ; or, for 1 kgm., 821 grms. of 

 nitre, 130 of sulphur, 49 grms. of carbon. The products being, 

 708 grms. S0 4 K 2 , 178 grms. C0 2 , 114 grms. N. 



The transformation liberates + 99'4 Cal. at constant pressure, 

 + 100 Cal. at constant volume. 



The reduced volume of the gases = 22'3 Cal. ; or, for 1 kgm., 

 181-5 litres. 



