已知下列反应：\(\rm{S{O}_{2}(g)+2O{H}^{−}(aq)=SO_{3}^{2−}(aq)+{H}_{2}O(l) }\)  \(\rm{ΔH_{1}}\)，\(\rm{Cl{O}^{−}(aq)+SO_{3}^{2−}(aq)=SO_{4}^{2−}(aq)+C{l}^{−}(aq) }\)  \(\rm{ΔH_{2}}\)，\(\rm{CaS{O}_{4}(s)=C{a}^{2+} }\) \(\rm{(aq)+SO_{4}^{2−}(aq) }\) \(\rm{ΔH_{3\;\;\;\;,}}\)则反应\(\rm{SO}\)\(\rm{{\,\!}_{2}}\)\(\rm{(g)+Ca}\)\(\rm{{\,\!}^{2+}}\)\(\rm{(aq)+ClO}\)\(\rm{{\,\!}^{-}}\)\(\rm{(aq)+2OH}\)\(\rm{{\,\!}^{-}}\)\(\rm{(aq)═CaSO}\)\(\rm{{\,\!}_{4}}\)\(\rm{(s)+H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(l)+Cl}\)\(\rm{{\,\!}^{-}}\)\(\rm{(aq)}\)的\(\rm{ΔH=}\)______________。

已知：\(\rm{(1)Zn(s)+1/2O_{2}(g) = ZnO(s)}\)；\(\rm{\triangle H =-348.3 kJ/mol}\)

\(\rm{(2)2Ag(s)+1/2O_{2}(g) = Ag_{2}O(s)}\)；\(\rm{\triangle H =-31.0 kJ/mol}\)

则\(\rm{Zn(s)+Ag_{2}O(s) = ZnO(s)+2Ag(s)}\)的\(\rm{\triangle H}\)等于

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

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

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

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

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

已知\(\rm{25℃}\)、\(\rm{101kPa}\)条件下\(\rm{4Al(s)+3O_{2}(g)══2Al_{2}O_{3}(s)}\)；\(\rm{\triangle H=-2834.9kJ·mol^{-1}}\)；

通过以下反应均可获取\(\rm{H_{2}}\)。下列有关说法正确的是\(\rm{(}\)　　\(\rm{)}\)

\(\rm{①}\)太阳光催化分解水制氢：\(\rm{2H_{2}O(l)=2H_{2}(g)+O_{2}(g)ΔH_{1}=+571.6 kJ·mol^{-1}}\)

\(\rm{②}\)焦炭与水反应制氢：\(\rm{C(s)+H_{2}O(g)=CO(g)+H_{2}(g)ΔH_{2}=+131.3 kJ·mol^{-1}}\)

\(\rm{③}\)甲烷与水反应制氢：\(\rm{CH_{4}(g)+H_{2}O(g)=CO(g)+3H_{2}(g)ΔH_{3}=+206.1 kJ·mol^{-1}}\)

已知：\(\rm{①CH_{3}COOH(l)+2O_{2}(g)=2CO_{2}(g)+2H_{2}O(l)}\)　\(\rm{ΔH_{1}}\)；

\(\rm{②C(s)+O_{2}(g)=CO_{2}(g)}\)　\(\rm{ΔH_{2}}\)；  \(\rm{③2H_{2}(g)+O_{2}(g)=2H_{2}O(l)}\)　\(\rm{ΔH_{3}}\)；

\(\rm{④2CO_{2}(g)+4H_{2}(g)=CH_{3}COOH(l)+2H_{2}O(l)}\)　\(\rm{ΔH_{4}}\)；

\(\rm{⑤2C(s)+2H_{2}(g)+O_{2}(g)=CH_{3}COOH(l)}\)　\(\rm{ΔH_{5}}\)。

下列关于上述反应的焓变的判断正确的是

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\(\rm{(}\)   \(\rm{)}\)

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

\(\rm{①C(s)+{H}_{2}O(g)=CO(g)+{H}_{2}(g)∆{H}_{1}=akJ·mo{l}^{-1} ②CO(g)+{H}_{2}O(g)={O}_{2}(g)+{H}_{2}(g)∆{H}_{2}=bkJ·ml{o}^{-1} }\)

\(\rm{③C{O}_{2}(g)+3{H}_{2}(g)=C{H}_{3}OH(g)+{H}_{2}O(g)∆{H}_{3}=ckJ·mo{l}^{-1} ④2C{H}_{3}OH(g)=C{H}_{3}OH(g)=C{H}_{3}OC{H}_{3}(g)+{H}_{2}O(g)∆{H}_{4}=dkJ·mo{l}^{-1} }\)