已知：\(\rm{C(s)+O_{2}(g)=CO_{2}(g)}\)  \(\rm{\triangle H_{1\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;}CO_{2}(g)+C(s)=2CO(g)}\)  \(\rm{\triangle H_{2}}\) \(\rm{2CO(g)+O_{2}(g)=2CO_{2}(g)}\)  \(\rm{\triangle H_{3\;\;\;\;\;\;\;\;\;\;}4Fe(s)+3O_{2}(g)=2Fe_{2}O_{3}(s)}\)  \(\rm{\triangle H_{4}}\)

\(\rm{3 CO(g)+Fe_{2}O_{3}(s)=3CO_{2}(g)+2Fe(s)}\)   \(\rm{\triangle H_{5}}\)

下列关于上述反应焓变的判断正确的是

A．\(\rm{\triangle H_{1} > 0}\)，\(\rm{\triangle H_{3} < 0}\)

B．\(\rm{\triangle H_{2} > 0}\)，\(\rm{\triangle H_{4} > 0}\)

C．\(\rm{\triangle H_{1}=\triangle H_{2}+\triangle H_{3\;\;\;\;\;\;\;\;\;\;\;\;\;\;}}\)

D．\(\rm{\triangle H_{3}=\triangle H_{4}+\triangle H_{5}}\)

【考点】反应热和焓变,用盖斯定律及有关计算

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