A．N2(g)＋3H2(g) ＝ 2NH3(g) ；ㄓH ＝ 2(b―a)kJ・mol－1
B．N2(g)＋3H2(g) ＝ 2NH3(l)；ㄓH ＝ 2(a―b―c)kJ・mol－1
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A．N2(g)＋3H2(g) ＝ 2NH3(g) ；ㄓH ＝ 2(b―a)kJ・mol－1
B．N2(g)＋3H2(g) ＝ 2NH3(l)；ㄓH ＝ 2(a―b―c)kJ・mol－1
