What Drives Chemical Reactions D.2 Energy Cycles in Reactions (id: 8a3430bd8)

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]
What is the enthalpy change h;2: r)kry qukvaal-.for the combustion;.urt;ti+/ qzdx *c y 5r pqa*er6hl+h of methane:
$CH_4$(g)+2$O_2$(g)→$CO_2$(g)+2$H_2O$(g) in kJmol$^{-1}$?

A. 4(414) + 2(498) - 2(804) - 4(463)
B. 4(414) + 2(498) - 804 - 2(463)
C. 4(414) + 4(498) - 804 - 2(463)
D. 4(414) + 4(498) - 2(804) - 4(463)


参考答案:  A


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