MCQ
Lattice enthalpy and enthalpy of solution of $NaCl$ are $788\, kJ mol ^{-1}$ and $4\, kJ\, mol ^{-1}$ respectively. The hydration enthalpy of $NaCl$ .......$\, kJ\, mol ^{-1}$
- A$-780$
- ✓$-784$
- C$780$
- D$784$
✓
Answer
Correct option: B.
$-784$
b
$4=788+\Delta H$
$4=788+\Delta H$
$\Delta H =-784 kJ$
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