本题目来源于试卷: What Drives Chemical Reactions D.2 Energy Cycles in Reactions，类别为 IB化学
[单选题]
Which of the followinbdb5vt8yqtg t p6t8q- 14) xpkdmztj)w q1dj 0u,vtb -l-9 (vug statements is false?
A. Hess's law states that the total enthalpy change for a chemical reaction is independent of the route by which the reaction takes place
B. ΔH$_r^{\circ}$=∑[ΔH$_f^{\circ}$(products)]-∑[ΔH$_f^{\circ}$(reactants)]
C. The standard enthalpy of formation of $O_2$(g) is zero
D. The standard enthalpy of formation for a pure compound in its standard state is zero
参考答案: D
本题详细解析:
The standard enthalpy of formation of a pure element in it glpd ism48-e9d8-o jes standard state is zero; not8 dg9-m idel48jpos -e for a compound.
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