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Lattice Energy of $LiF$

APCHEM-K1LE5P

Which of the following is the standard enthalpy change for the formation of $LiF_{(s)}$?

Refer to the table given below.

Process Reaction $\Delta H ^\circ$ (kJ / mol)
Sublimation $Li_{(s)} \rightarrow Li_{(g)}$ 155.2
Dissociation $\frac{1}{2} F_{2(g)} \rightarrow F_{(g)}$ 75.3
Ionization $Li_{(g)} \rightarrow Li^{+}_{(g)} + e^{-}$ 520
Electron affinity $F_{(g)} + e^{-} \rightarrow F^{-}_{(g)}$ -328
Formation of $LiF$ (s) $Li^{+}_{(g)} + F^{-}_{(g)} \rightarrow LiF_{(s)} \quad$ -1017
A

-594 kJ/mol

B

905 kJ/mol

C

1440 kJ/mol

D

2095 kJ/mol