A、Ag<sub>2sub>O(s) = 2Ag(s) + 1/2O<sub>2sub>(g) B、N<sub>2sub>O<sub>4sub>(g) = 2NO<sub>2sub>(g) C、Fe<sub>2sub>O<sub>3sub>(s) +3/2C(s) = 2Fe(s) +1/2CO<sub>2sub>(g) D、6C(s) + 6H<sub>2sub>O(g) = C<sub>6sub>H<sub>12sub>O<sub>6sub>(s)
A、Ag<sub>2sub>O(s) = 2Ag(s) + 1/2O<sub>2sub>(g) B、N<sub>2sub>O<sub>4sub>(g) = 2NO<sub>2sub>(g) C、Fe<sub>2sub>O<sub>3sub>(s) +3/2C(s) = 2Fe(s) +1/2CO<sub>2sub>(g) D、6C(s) + 6H<sub>2sub>O(g) = C<sub>6sub>H<sub>12sub>O<sub>6sub>(s)
A、H<sub>2sub>O的标准生成热Δ<sub>fsub>H<sub>msub>θ B、H<sub>2sub>(g)的标准燃烧热ΔcHmθ(H<sub>2sub>,g) C、H<sub>2sub>O(l)的标准生成热Δ<sub>fsub>H<sub>msub>θ(H<sub>2sub>O,l) D、氢氧电池可逆热效应 E、以上均不对
A、H<sub>2sub>O(l) H<sub>2sub>O(g) H<sub>2sub>O(s) B、Cl<sub>2sub>(l) Br<sub>2sub> (l) I<sub>2sub>(s) C、Na(s) NaCl(s) CaCl<sub>2sub>(s) D、O<sub>3sub>(g) O<sub>2sub>(g) O(g)
A、(a)H<sub>2sub>O(l,373K,100kPa)与(b)H<sub>2sub>O(g,373K,100kPa) B、(a)H<sub>2sub>O(l,373K,200kPa)与(b)H<sub>2sub>O(g,373K,200kPa) C、(a)H<sub>2sub>O(l,374K,100kPa)与(b)H<sub>2sub>O(g,374K,100kPa) D、(a)H<sub>2sub>O(l,373K,100kPa)与(b)H<sub>2sub>O(g,373K,200kPa)
A、CaCO<sub>3sub>(s)=CaO(s)+CO<sub>2sub>(g) B、N<sub>2sub>O<sub>4sub>(g)=2NO<sub>2sub>(g) C、2ZnS(s)+3O<sub>2sub>(g)=2ZnO(s)+2SO<sub>2sub>(g) D、CO(g)+H<sub>2sub>O(g)=CO<sub>2sub>(g)+H<sub>2sub>(g)
A、H<sub>2sub>O(l,268K,100kPa)→H<sub>2sub>O(s,268K,100kPa) B、在298 K,100kPa时,H<sub>2sub>(g)+Cl<sub>2sub>(g)=2HCl(g) C、在298 K,100kPa时,一定量的NaCl(s)溶于水中 D、H<sub>2sub>O(l,373K,100kPa)→H<sub>2sub>O(g,373K,100kPa)
A、K<sub>2sub>Cr<sub>2sub>O<sub>7sub> B、Na<sub>2sub>S<sub>2sub>O<sub>3sub> C、Zn D、H<sub>2sub>C<sub>2sub>O<sub>4sub>·2H<sub>2sub>O