已知反应①Fe(s)+CO 2(g) FeO(s)+CO(g) ΔH=akJ·mol -1,平衡常数为K; 反应②CO(g)+1/2O 2(g) CO 2(g) ΔH=bkJ·mol -1; 反应③Fe 2O 3(s)+3CO(g) 2Fe(s)+3CO 2(g) ΔH=ckJ·mol -1。测得在不同温度下,K值如下: 温度/℃ 500 700 900 K 1.00 1.47 2.4...
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