已知：Fe 2 O 3 (s)＋3/2C(s)=3/2CO 2 (g)＋2Fe(s) △H=234．1kJ·mol -1
| 已知：Fe 2 O 3 (s)＋3/2C(s)=3/2CO 2 (g)＋2Fe(s) △H=234．1kJ·mol -1 C(s)＋O 2 (g)=CO 2 (g) △H=－393．5kJ·mol -1 则2Fe(s)＋3/2O 2 (g)=Fe 2 O 3 (s)的△H是 |
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| A．－824．4kJ·mol -1 B．－627．6kJ·mol -1 C．－744．7kJ·mol -1 D．－169．4kJ·mol -1 |
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