摘要:0.05 +O2(g)===SO2(g) ΔH1=-296 kJ·mol-1 SO2(g)+O2(g)===SO3(g) ΔH2=-99 kJ·mol-1 3S(s)+O2(g)===3SO3(g) ΔH=(ΔH1+ΔH2)×3=-1 185 kJ·mol-1

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