本题目来源于试卷: What Drives Chemical Reactions D.1 Measuring Enthalpy Changes，类别为 IB化学
[单选题]
Which of the four re 1d9: n3f 6qk/y qhlahlneqh:4action2sab)+6h u*x ramq 9xks below is an endothermic reaction?
A. $CH_4$(g)+$2O_2$(g)→$CO_2$(g) +$2H_2O$(l)
B. $C$(S)+$O_2$(g) → $CO_2$(g)
C. $NO$(g)+$\frac{1}{2}$$O_2$→ $NO_2$(g)
D. $CO_2$(g) → $CO$(g)+$\frac{1}{2}$$O_2$(g)
参考答案: D
本题详细解析:
Most combustion reactions are exothermic. D is the opposite of a combustiww 5-o;2qa nupq(y 6gkon reackp 2ou;-6qa(g ww5qyn tion.
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