-Going to the party on Saturday? - Shall we go together? A. Not sure. B. Guess what? C.With pleasure. D. You bet ! 答案:D已知25℃、101 kPa条件下: ①4Al(s)+3O2(g)===2Al2O3(s) ΔH=-2834.98 kJ/mol ②4Al(s)+2O3(g)===2Al2O3(s) ΔH=-3119.18kJ/mol 由此得出的正确结论是
[ ]A.等质量的O2比O3能量低,由O2变O3为吸热反应 B.反应①可确定铝的燃烧热是708.7 kJ C.O3比O2稳定,由O2变O3为放热反应 D.根据②可确定铝的燃烧热是779.8 kJ/mol