摘要:已知:① C(s)+O2(g)=CO2(g), DH=-393.5 kJ?mol-1 ② 2CO(g)+O2(g)=2CO2(g), DH=-566 kJ?mol-1 ③ TiO2(s)+2Cl2(g)=TiCl4(s)+O2(g), DH=+141 kJ?mol-1 则TiO2(s)+2Cl2(g)+2C(s)=TiCl4的DH= .答案:-80 kJ?mol-1

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