412 DEFINITE NON-CARBURETTED EXPLOSIVE COMPOUNDS. 



The permanent pressure, at 



2787 atm. 288 kgm. m 

 n _ 0-45 r w - 0-450* 



but this value ^ only applicable when n is large enough for the 

 nitrogen monoxide not to be liquefied. For high densities of 

 charge it becomes imaginary. 



At the theoretical temperature, the water being gaseous, the 

 pressure would be 



+ 2737 2559 atm. 2642 kgm. 



^^ or 



n n n 



The salt being decomposed in the volume which it occupies 

 in the solid state, 4500 kgm. All these values hardly amount 

 to more than the third of the figures corresponding to the forma- 

 tion of free nitrogen. 



11. (5th) The formation of nitric oxide, 



N0 3 HNH 3 (solid) = N +NO + 2H 2 0, 

 would liberate 



Liquid water, -f 28*2 Cal. at constant pressure, + 29*3 at constant 



volume. 

 Gaseous water, -|- 9*2 Cal. at constant pressure, + 11 '2 at constant 



volume. 

 The volume of the gases produced at the temperature t 



3 3 *5 litres (l + ^7;), the water being liquid ; 



78*1 litres (l + ^/> the water being gaseous. 



This volume is the same as in the case of the formation of 

 free nitrogen. 



The theoretical temperature at constant volume, = 



21'6 



518. 



The permanent pressure at is the same as for the formation 



of free nitrogen, viz. ' ; it is, moreover, imaginary for 



n 0*450 



high densities of charge, nitric oxide becoming liquefied. 



At the theoretical temperature, the water being gaseous, the 

 pressure would be 



976 V 1 + 273) 2753 atm. 2840 kgm. 



= QJ. . 



n n n 



The salt decomposed in the volume which it occupies in the 



