Chemistry-Ionic Bond
NEET Chemistry Ionic Bond MCQ Question
Type: MCQ-numerical-Hard-Class 11
Calculate the energy required to completely separate 0.5 moles of solid NaCl into its gaseous ions given that the lattice enthalpy of NaCl is 788 kJ/mol.
A
394 kJ
B
788 kJ
C
1576 kJ
D
197 kJ
Correct Answer
Option A
Detailed Explanation
The lattice enthalpy of NaCl is 788 kJ/mol, which means 788 kJ is required for 1 mole. For 0.5 moles, the energy required is 0.5 * 788 = 394 kJ.
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