已知下列热化学方程式

Fe2O3(s)+3CO(g)===2Fe(s)+3CO2(g)

ΔH1=-25 kJ·mol1                                                                                                                                                                                               

3Fe2O3(s)+CO(g)===2Fe3O4(s)+CO2(g)

ΔH2=-47 kJ·mol1                                                                                                                                                                                               

Fe3O4(s)+CO(g)===3FeO(s)+CO2(g)

ΔH3=19 kJ·mol1                                                                                                                                                                                                      

写出FeO(s)被CO还原成Fe和CO2的热化学方程式____________________________

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