question_answer

On the basis of the following thermo chemical data:\[(\Delta f\,{{G}^{o}}H_{(aq)}^{+}=0)\] \[{{H}_{2}}O(l)\xrightarrow[{}]{{}}{{H}^{+}}(aq)+O{{H}^{}}(aq);\]              \[\Delta H=57.32\text{ }kJ\] \[{{H}_{2}}O(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}{{H}_{2}}O(l);\] \[\Delta H=-286.20\,KJ\] The value of enthalpy of formation of\[O{{H}^{}}\]ion at\[25{}^\circ C\]is:     AIEEE  Solved  Paper-2009

A) -22.88 kJ                              

B) -228.88 kJ           

C)        +228.88 kJ          

D)        -343.52 kJ