对于\(m{3Fe(s)+4H_{2}O(g)⇌Fe_{3}O_{4}(s)+4H_{2}(g)}\)，反应的化学平衡常数的表达式为\(m{(}\)　　\(m{)}\) --优优班--学霸训练营

对于\(\rm{3Fe(s)+4H_{2}O(g)⇌Fe_{3}O_{4}(s)+4H_{2}(g)}\)，反应的化学平衡常数的表达式为\(\rm{(}\)　　\(\rm{)}\)

A．\(\rm{K= \dfrac {c(Fe_{3}O_{4})\cdot c(H_{2})}{c(Fe)\cdot c(H_{2}O)}}\)

B．\(\rm{K= \dfrac {c(Fe_{3}O_{4})\cdot c^{4}(H_{2})}{c(Fe)\cdot c^{4}(H_{2}O)}}\)

C．\(\rm{K= \dfrac {c^{4}(H_{2}O)}{c^{4}(H_{2})}}\)

D．\(\rm{K= \dfrac {c^{4}(H_{2})}{c^{4}(H_{2}O)}}\)

【考点】化学平衡常数

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难度：中等