question_answer

The enthalpy of solution of \[BaC{{l}_{2}}(s)\] and \[BaC{{l}_{2}}.2{{H}_{2}}O(s)\] are \[-20.6\] and \[8.8\,kJ\,mo{{l}^{-1}}\] respectively. The enthalpy change for the reaction \[BaC{{l}_{2}}(s)+2{{H}_{2}}O\to \] is [Roorkee Qualifying 1998]

A)                 29.4 kJ  

B)                 ? 11.8 kJ

C)                 ? 20.6 kJ              

D)                 ? 29.4 kJ