Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below:
The energy involved in the conversion of (using data , = 240 kJ mol-1 , = = -349 kJ mol-1, = -381 kJ mol-1) will be
+120 kJ mol-1
+152 kJ mol-1
-610 kJ mol-1
-850 kJ mol-1
As we learnt in
Bond dissociation enthalpy -
It is the average of enthalpy required to dissociate the said bond present in different gaseous compound in to free atoms in gaseous state.
- wherein
Enthalpy of Hydration -
Amount of enthalpy evolved during hydration of 1 mole anhydrous compound.
- wherein
The energy involved in the conversion of to is given
Substituting various values from given data
Option 1)
+120 kJ mol-1
This option is incorrect.
Option 2)
+152 kJ mol-1
This option is incorrect.
Option 3)
-610 kJ mol-1
This option is correct.
Option 4)
-850 kJ mol-1
This option is incorrect.
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