⑴CH3COOH(l)+2O2(g)=2CO2(g)+2H2O(l)ΔH1=-870.3 kJ·mol-1
⑵C(s)+O2(g)=CO2(g)ΔH2=-393.5 kJ·mol-1
⑶H2(g)+1/2O2(g)=H2O(l)ΔH3=-285.8 kJ·mol-1
则反应2C(s)+2H2(g)+O2(g)=CH3COOH(l)的反应热为( )
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