Chemistry Reference
In-Depth Information
Q
exp
, kJ g
-1
1.04
0.88
Fig. 8.18
Determination of
the thermal effect of the high-
temperature decomposition
of AP in working cells # 1
and #2
0.72
Pa
phase remains equal to the true activation energy of the irreversible decomposition
until
μ
v
μ
g
P
sv
(
T
)
P
∞
−
P
sv
(
T
)
<<
1
(8.24)
is valid.
At higher temperatures, the fraction of the sublimation products increases and,
according to Eq. (8.16), the effective activation energy increases, approaching infin-
ity for
P
sv
(
T
)=
P
∞
. This was observed in experiments on the linear pyrolysis of AP
accompanied by the burning of gaseous pyrolysis products (Fig. 3.5).
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