下列说法中，正确的是(    )

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

下列关于上述反应焓变的判断正确的是

通过以下反应可获得新型能源二甲醚\(\rm{(CH_{3}OCH_{3} )}\)。下列说法不正确的是

\(\rm{①C(s) + H_{2}O(g)=CO(g) + H_{2} (g)}\)                  \(\rm{ΔH_{1} = a kJ·mol^{-1}}\)

\(\rm{②CO(g) + H_{2}O(g)=CO_{2}(g) + H_{2} (g)}\)            \(\rm{ΔH_{2} = b kJ·mol^{-1}}\)

\(\rm{③CO_{2} (g) + 3H_{2} (g)=CH_{3}OH(g) + H_{2}O(g)}\)   \(\rm{ΔH_{3} = c kJ·mol^{-1}}\)

\(\rm{④2CH_{3}OH(g)=CH_{3}OCH_{3} (g) + H_{2}O(g)}\)        \(\rm{ΔH_{4} = d kJ·mol^{-1}}\)

如图，在\(\rm{101 kPa}\)时，\(\rm{ΔH_{1}=-393.5 kJ·mol^{-1}}\)，\(\rm{ΔH_{2}=-395.4 kJ·mol^{-1}}\)，下列说法正确的是

已知

\(\rm{⑴ H_{2}(g)+1/2 O_{2}(g)=H_{2}O(g)}\)    \(\rm{\triangle H_{1}=a kJ·mol^{-1}}\)

\(\rm{⑵ 2 H_{2}(g)+ O_{2}(g)=2 H_{2}O(g)}\)    \(\rm{\triangle H_{2}=b kJ·mol^{-1}}\)

\(\rm{⑶ H_{2}(g)+1/2 O_{2}(g)=H_{2}O(l)}\)    \(\rm{\triangle H_{1}=c kJ·mol^{-1}}\)

\(\rm{⑷ 2 H_{2}(g)+ O_{2}(g)=2 H_{2}O(l)}\)    \(\rm{\triangle H_{2}=d kJ·mol^{-1}}\)

下列关系式中正确的是

\(\rm{1}\)，\(\rm{3-}\)丁二烯和\(\rm{2-}\)丁炔分别与氢气反应的热化学方程式如下：

\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{=CH-CH=CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)+2H}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)→CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{(g)}\)   \(\rm{ΔH= -236.6 x kJ·mol}\)\(\rm{{\,\!}^{-1}}\)

\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{-C≡C-CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{(g)+2H}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)→CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{(g)}\)    \(\rm{ΔH= -272.7 x kJ·mol}\)\(\rm{{\,\!}^{-1}}\)

由此不能判断  \(\rm{(}\)     \(\rm{)}\)

已知反应\(\rm{X+Y═══M+N}\)为吸热反应，对这个反应的下列说法中正确的是(    )

相同温度下，体积均为\(\rm{0.25 L}\)的两个密闭容器中发生反应：\(\rm{X_{2}(g)+3Y_{2}(g)⇌ 2XY_{3}(g)}\)　\(\rm{ΔH=-92.6 kJ·mol^{-1}}\)实验测得反应在起始、达到平衡时的有关数据如下表所示：下列叙述正确的是

在\(\rm{1200℃}\)时，天然气脱硫工艺中会发生下列反应：

\(\rm{H}\)\(\rm{{\,\!}_{2}}\)\(\rm{S(g)+}\)\(\rm{ \dfrac{3}{2} }\)\(\rm{O}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)═SO}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)+H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(g)\triangle H}\)\(\rm{{\,\!}_{1}}\)

\(\rm{2H}\)\(\rm{{\,\!}_{2}}\)\(\rm{S(g)+SO}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)═}\)\(\rm{ \dfrac{3}{2} }\)\(\rm{S}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)+2H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(g)\triangle H}\)\(\rm{{\,\!}_{2}}\)

\(\rm{H}\)\(\rm{{\,\!}_{2}}\)\(\rm{S(g)+}\)\(\rm{ \dfrac{1}{2} }\)\(\rm{O}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)═S(g)+H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(g)\triangle H}\)\(\rm{{\,\!}_{3}}\)

\(\rm{2S(g)═S}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)\triangle H}\)\(\rm{{\,\!}_{4}}\)

则\(\rm{\triangle H}\)\(\rm{{\,\!}_{4}}\)的正确表达式为\(\rm{(}\)　　\(\rm{)}\)