(i)\[{{C}_{(graphite)}}+{{O}_{2(g)}}\to C{{O}_{2(g)}};{{\Delta }_{r}}{{H}^{o}}=xkJ\,mo{{l}^{-1}}\] |
(ii)\[{{C}_{(graphite)}}+\frac{1}{2}{{O}_{2(g)}}\to C{{O}_{(g)}};\]\[{{\Delta }_{r}}{{H}^{o}}=y\,\,kJ\,\,mo{{l}^{-1}}\] |
(iii)\[C{{O}_{(g)}}+\frac{1}{2}{{O}_{2(g)}}\to C{{O}_{2}}_{(g)};{{\Delta }_{r}}{{H}^{o}}=z\,\,kJ\,\,mo{{l}^{-1}}\] |
A) \[z=x+y\]
B) \[x=y-z\]
C) \[x=y+z\]
D) \[y=2zx\]
Correct Answer: C
Solution :
By adding equation (ii) and (iii), we get \[C(graphite)+{{O}_{2(g)}}\to C{{O}_{2(g)}},\]i.e.,\[x=y+z\]You need to login to perform this action.
You will be redirected in
3 sec