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]
The enthalpy diagram bel v1 qa7 bpv u:wlz3 xhzqgvpmd 2w;64)6ow shows *g :1om mkiht0s,ukp; that:
A. The reactants are more stable than the products and ΔH is positive
B. The products are more stable than the reactants and ΔH is positive
C. The reactants are more stable than the products andΔH is negative
D. The products are more stable than the reactants and ΔH is negative
参考答案: A
本题详细解析:
The reactants are at a lower energy level+szgw+) a0 gj(;ppjxl to the products and are therefore more stable. The products are at a higher energy level to the products meaning the enthalpy change j j)wzp( + al0+;xsggpis positive (endothermic reaction).
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