Calculate the lattice energy of sodium fluoride from the following data: Ionization energy of Na: 496 kJ/mol
Electron affinity of F: -328 kJ/mol
Energy to vaporize Na: 108 kJ/mol
F2 bond energy: 160 kJ/mol
Energy change for the reaction:
Na(s) +
F2(g) NaF(s) ; H = -575 kJ
A) 931 kJ/mol
B) -931 kJ/mol
C) -1011 kJ/mol
D) 1011 kJ/mol
E) -851 kJ/mol
Correct Answer:
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