Ⅰ.CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH1=-820.6kJ·mol-1
Ⅱ.CH4(g)+CO2(g) 2CO(g)+2H2(g)ΔH2=+247.3kJ·mol-1
Ⅲ.CH4(g)+H2O(g) CO(g)+3H2(g)ΔH3=+206.1kJ·mol-1
Ⅳ.CO2(g)+H2(g) CO(g)+H2O(g)ΔH4
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