
32 Ballistics: Theory and Design of Guns and Ammunition
Nh hRT
THf uH
22
kg-mol
0
298
5
95610036 307 8 314
+−
=× +−
→
−
∆
(. )[ ],(. )
kkJ
kg-molK
K
⋅
(, )[ ]1 500
Nh hRT
THf uH
kJ
0
298
228+−
=+
→
∆ .[]
Nh hRT
TCf uC
kg-mol
kJ
kg-mol
0
298
5
62310023 253
+−
=× +
→
−
∆
(. )[ ],
−
⋅
(.
,)
8 314 1 500
kJ
kg-molK
K
Nh hRT
TCf uC
kJ
0
298
067+−
=
→
∆ .[]
Nh hRT
TNf uN
kg-mol
kJ
kg-mol
22
0
298
5
54510038 404
+−
=× +
→
−
∆
(. )[ ],
−
⋅
(.
,)
8 314 1 500
kJ
kg-molK
K
Nh hRT
TNf uN
kJ
0
298
141+−
=
→
∆ .[]
The enthalpies of the products are then given by
Nh RT
i
−=−+ ++=−().[].[] .[].[]
prod uprod
kJ kJ kJ kJ598228 067141 1189.[]kJ
The heat given off by the reaction ...