已知：\(\rm{Zn(s)+ \dfrac{1}{2}{O}_{2}(g)=ZnO(s) ΔH=-348.3 kJ·mol^{-1}}\)；\(\rm{2Ag(s)+ \dfrac{1}{2}{O}_{2}(g)=A{g}_{2}O(s) }\) \(\rm{ΔH=-31.0 kJ·mol^{-1}}\)；则反应\(\rm{Zn(s)+Ag_{2}O(s)═ZnO(s)+2Ag(s)}\)的\(\rm{ΔH}\)等于

在\(\rm{1200 ℃}\)时，天然气脱硫工艺中会发生下列反应：

\(\rm{H_{2}S(g)+\dfrac{3}{2}O_{2}(g)=SO_{2}(g)+H_{2}O(g)}\)　\(\rm{ΔH_{1\;\;\;\;}2H_{2}S(g)+SO_{2}(g)=\dfrac{3}{2}S_{2}(g)+2H_{2}O(g)}\)　\(\rm{ΔH_{2}}\)

\(\rm{H_{2}S(g)+\dfrac{1}{2}O_{2}(g)=S(g)+H_{2}O(g)}\)　\(\rm{ΔH_{3\;\;\;\;\;\;\;}2S(g)=S_{2}(g)}\)　\(\rm{ΔH_{4}}\)

则\(\rm{ΔH_{4}}\)的正确表达式为\(\rm{(}\)　　\(\rm{)}\)

某反应使用催化剂后，其反应过程中能量变化如图所示\(\rm{.}\)下列说法错误的是

已知：\(\rm{①}\)：\(\rm{2C(s)+O_{2}(g)═2CO(q)\triangle H=-221.0kJ/mol②2H_{2}(q)+O_{2}(q)═2H_{2}O(g)}\)

\(\rm{\triangle H=-483.6kJ/mol}\)，则制备水煤气的反应\(\rm{C(s)+H_{2}O(g)═CO(g)+H_{2}(g)}\)的\(\rm{\triangle H}\)为\(\rm{(}\)　　\(\rm{)}\)

已知下列反应的热化学方程式为\(\rm{C(}\)\(\rm{s}\)\(\rm{)+O_{2}(}\)\(\rm{g}\)\(\rm{)=CO_{2}(}\)\(\rm{g}\)\(\rm{)\triangle H_{1}=-393.5}\)\(\rm{k}\)\(\rm{J/}\)\(\rm{mol}\)；\(\rm{CH_{3}COOH(}\)\(\rm{l}\)\(\rm{)+2O_{2}(}\)\(\rm{g}\)\(\rm{)=2CO_{2}(}\)\(\rm{g}\)\(\rm{)+2H_{2}O(}\)\(\rm{l}\)\(\rm{)\triangle H_{2}=-870.3}\)\(\rm{k}\)\(\rm{J/}\)\(\rm{mol}\)

\(\rm{H_{2}(}\)\(\rm{g}\)\(\rm{)+O_{2}(}\)\(\rm{g}\)\(\rm{)=H_{2}O(}\)\(\rm{l}\)\(\rm{)\triangle H_{3}=-285.8}\)\(\rm{k}\)\(\rm{J/}\)\(\rm{mol}\)；\(\rm{2C(}\)\(\rm{s}\)\(\rm{)+2H_{2}(}\)\(\rm{g}\)\(\rm{)+O_{2}(}\)\(\rm{g}\)\(\rm{)=CH_{3}COOH(}\)\(\rm{l}\)\(\rm{)}\)的反应热\(\rm{\triangle H(}\)焓变\(\rm{)}\)为(    )

\(\rm{2CO(g)+4H_{2}(g)=2CH_{4}(g)+O_{2}(g) Δ}\)\(\rm{H}\)\(\rm{=+71 kJ·mol^{-1} ①}\)    \(\rm{CO(g)+2H_{2}(g)=CH_{3}OH(l) Δ}\)\(\rm{H}\)\(\rm{=-90.5 kJ·mol^{-1}②}\)已知甲烷的燃烧热为\(\rm{890 kJ·mol^{-1}}\)，则甲醇的燃烧热\(\rm{Δ}\)\(\rm{H}\)为(    )

今有如下三个热化学方程式：

 \(\rm{H_{2}(g)+1/2O_{2}(g)=2H_{2}O(g)}\)；\(\rm{ΔH=aKJ·mol^{-1}}\)，

 \(\rm{H_{2}(g)+1/2O_{2}(g)=H_{2}O(l)}\)；\(\rm{ΔH=}\) \(\rm{bkJ·mol^{-1}}\)，

 \(\rm{2H_{2}(g)+O_{2}(g)=2H_{2}O(l)}\)；\(\rm{ΔH=}\) \(\rm{ckJ·mol^{-1}}\)，

 关于它们的下列表述正确的是\(\rm{(}\)   \(\rm{)}\)