I. 3N2H4(g)⇌4NH3(g)+N2(g) ΔH1=-156.5kJ・mol-1
II. N2H4(g)⇌2H2(g)+N2(g) ΔH2
III. N2H4(g)+ H2(g)⇌2NH3(g) ΔH3=-178.8kJ・mol-1
请回答:
解离分解 N2H4 (g)→2 NH2・ ΔH4=-46.65 kJ・mol-1
非解离分解 N2H4(g)→N2H3・+ H・ΔH5=88.11 kJ・mol-1
键裂活化能(kJ・mol-1)
Ru |
Fe |
Pt |
Cu |
|
N-N |
0.00 |
0.00 |
23.49 |
25.00 |
N-H |
66.75 |
69.35 |
66.92 |
88.11 |
结合数据和具体反应分析,气态肼分解的“引发”阶段以为主(填“解离分解”或“非解离分解”),判断依据是。