NH3(g)燃烧的产物是NO2(g)和H2O(g)。已知反应有：
(1)H2(g)＋
O2(g)===H2O(g) ΔH＝－241.8 kJ·mol－1
(2)N2(g)＋O2(g)===NO2(g) ΔH＝＋33.9 kJ·mol－1
(3)NH3(g)===N2(g)＋
H2(g) ΔH＝＋46.0 kJ·mol－1
下列关于NH3(g)燃烧的热化学方程式的书写正确的是( )
A．NH3(g)＋
O2(g)===NO2(g)＋H2O(g) ΔH＝－282.8 kJ·mol－1
B．NH3(g)＋
O2(g)===NO2(g)＋H2O(g) ΔH＝－161.9 kJ·mol－1
C．NH3(g)＋O2(g)===NO2(g)＋H2O(g) ΔH＝－161.9 kJ·mol－1
D．NH3(g)＋O2(g)===NO2(g)＋H2O(g) ΔH＝－282.8 kJ·mol－1