A) 524.1
B) 41.2
C) ? 262.5
D) ? 41.2
Correct Answer: B
Solution :
\[C+{{O}_{2}}\to C{{O}_{2(g)}},\,\,\,\Delta H_{f}^{o}=-393.5\,kJ\,mo{{l}^{-1}}\] ?.(i) \[C+\frac{1}{2}{{O}_{2}}\to C{{O}_{(g)}},\,\,\,\Delta H_{f}^{o}=-110.5\,kJ\,mo{{l}^{-1}}\] ?.(ii) \[{{H}_{2}}+\frac{1}{2}{{O}_{2}}\to {{H}_{2}}{{O}_{(g)}},\,\,\,\Delta H_{f}^{o}\]\[=-241.8\,kJmo{{l}^{-1}}\] ...(iii) By (ii) + (iii) ? (i) \[C{{O}_{2(g)}}+{{H}_{2(g)}}\to C{{O}_{(g)}}+{{H}_{2}}{{O}_{(g)}},\,\,\,\Delta H=+41.2\].You need to login to perform this action.
You will be redirected in
3 sec