(a) \[{{H}^{+}}_{(aq)}+O{{H}^{-}}_{(aq)}={{H}_{2}}{{O}_{(l)}},\,\,\,\Delta H=-{{X}_{1}}kJ\,mo{{l}^{-1}}\] |
(b) \[{{H}_{2(g)}}+\frac{1}{2}{{O}_{2(g)}}={{H}_{2}}{{O}_{(l)}},\,\,\,\Delta H=-{{X}_{2}}\,kJ\,mo{{l}^{-1}}\] |
(c) \[C{{O}_{2(g)}}+{{H}_{2(g)}}=C{{O}_{(g)}}+{{H}_{2}}{{O}_{(l)}}-{{X}_{3}}kJ\,mo{{l}^{-1}}\] |
(d) \[{{C}_{2}}{{H}_{2(g)}}+\frac{5}{2}{{O}_{2(g)}}=2C{{O}_{2(g)}}+{{H}_{2}}{{O}_{(l)}}+{{X}_{4}}kJmo{{l}^{-1}}\] |
A) \[+{{X}_{1}}\,kJ\,mo{{l}^{-1}}\]
B) \[-{{X}_{2}}\,kJ\,mo{{l}^{-1}}\]
C) \[+{{X}_{3}}\,kJ\,mo{{l}^{-1}}\]
D) \[-{{X}_{4}}\,kJ\,mo{{l}^{-1}}\]
Correct Answer: B
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