NEETChemistryChemical Bonding and Molecular Structure
What is the significance of the Lattice Enthalpy value of 788 kJ mol-1 for NaCl?
Options
- AIt is the energy required to form one mole of solid NaCl.
- BIt is the energy released when one mole of solid NaCl is formed.
- CIt is the energy required to separate one mole of solid NaCl into its constituent ions.
- DIt is the energy required to dissolve one mole of solid NaCl in water.
Correct answer
C. It is the energy required to separate one mole of solid NaCl into its constituent ions.
Step-by-step solution
The Lattice Enthalpy of NaCl, 788 kJ mol-1, means that 788 kJ of energy is required to separate one mole of solid NaCl into one mole of Na+(g) and one mole of Cl-(g) to an infinite distance.