设反应\(\rm{①Fe(s)+CO_{2}(g)⇌ FeO(s)+CO(g)}\),\(\rm{∆H=a kJ·mol^{-1}}\),反应\(\rm{②Fe(s)+H_{2}O(g)⇌ }\) \(\rm{FeO(s)+H_{2}(g)}\),\(\rm{∆H=b kJ·mol^{-1}}\),以上两反应的平衡常数分别为\(\rm{K_{1}}\)和\(\rm{K_{2}}\),在不同温度下,\(\rm{K_{1}}\)、\(\rm{K_{2}}\)的值如下:
\(\rm{T/K}\) | \(\rm{K_{1}}\) | \(\rm{K_{2}}\) |
\(\rm{973}\) | \(\rm{1.47}\) | \(\rm{2.38}\) |
\(\rm{1173}\) | \(\rm{2.15}\) | \(\rm{1.67}\) |
下列有关叙述正确的是\(\rm{(}\) \(\rm{)}\)