\[{{H}_{2}}+\frac{1}{2}{{O}_{2}}\to {{H}_{2}}O;\,\Delta H=-68.39\,kcal\] \[K+{{H}_{2}}O+\]Water \[\to KOH(aq)+\frac{1}{2}{{H}_{2}};\,\Delta H=-48\,kcal\] \[KOH+\]Water \[\to KOH(aq);\,\Delta H=-14\,kcal\] The heat of formation of \[KOH\] is (in kcal) [CPMT 1988]

\[{{H}_{2}}+\frac{1}{2}{{O}_{2}}\to {{H}_{2}}O;\,\Delta H=-68.39\,kcal

1.	\[{{H}_{2}}+\frac{1}{2}{{O}_{2}}\to {{H}_{2}}O;\,\Delta H=-68.39\,kcal\] \[K+{{H}_{2}}O+\]Water \[\to KOH(aq)+\frac{1}{2}{{H}_{2}};\,\Delta H=-48\,kcal\] \[KOH+\]Water \[\to KOH(aq);\,\Delta H=-14\,kcal\] The heat of formation of \[KOH\] is (in kcal) [CPMT 1988]
A.	\[-68.39+48-14\]
B.	\[-68.39-48+14\]
C.	\[68.39-48+14\]
D.	68.39 + 48 + 14
Answer» C. \[68.39-48+14\]

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\[{{H}_{2}}+\frac{1}{2}{{O}_{2}}\to {{H}_{2}}O;\,\Delta H=-68.39\,kcal\] \[K+{{H}_{2}}O+\]Water \[\to KOH(aq)+\frac{1}{2}{{H}_{2}};\,\Delta H=-48\,kcal\] \[KOH+\]Water \[\to KOH(aq);\,\Delta H=-14\,kcal\] The heat of formation of \[KOH\] is (in kcal) [CPMT 1988]

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