1．
已知反应：
\(\rm{①101kPa}\)时，\(\rm{2C(s)+O}\)\(\rm{{\,\!}_{2}}\)
\(\rm{(g)═2CO(g)}\) \(\rm{ΔH=-221kJ·mol}\)\(\rm{{\,\!}^{-1}}\)
\(\rm{{\,\!}}\)
\(\rm{②}\)稀溶液中，\(\rm{H}\)\(\rm{{\,\!}^{+}}\)
\(\rm{(aq)+OH}\)\(\rm{{\,\!}^{-}}\)
\(\rm{(aq)═H}\)\(\rm{{\,\!}_{2}}\)
\(\rm{O(l)}\) \(\rm{ΔH=-57.3kJ·mol}\)\(\rm{{\,\!}^{-1}}\)
\(\rm{{\,\!}}\)
\(\rm{③H}\)\(\rm{{\,\!}_{2}}\)
\(\rm{(g)+}\)\(\rm{ \dfrac{1}{2}}\)
\(\rm{O}\)\(\rm{{\,\!}_{2}}\)
\(\rm{(g)═H}\)\(\rm{{\,\!}_{2}}\)
\(\rm{O(g)}\) \(\rm{ΔH=-241.8kJ·mol}\)\(\rm{{\,\!}^{-1}}\)
\(\rm{{\,\!}}\)\(\rm{④H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(g)═H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O(l)}\) \(\rm{ΔH=-44.0kJ·mol}\)\(\rm{{\,\!}^{-1}}\)
下列结论正确的是( )