1.2N2(g)+6H2(g)箭頭 4NH3(g)
2.2NH3(g)+N2(g)+3H2(g)
更新1:
2NH3(g)+N2(g)箭頭 3H2(g)方程式這樣才對
更新2:
答案是 1. -180kJ 係數和=2+6+4=12 2. 90kJ 係數和=2+1+3=6