The Born-Haber cycle for KCl is evaluated with the following data:

for ; for ;
for ; for
for

The magnitude of lattice enthalpy of KCl in is (Nearest integer).

Question

The Born-Haber cycle for KCl is evaluated with the following data:

for ;  for ;
 for ;  for 
 for

The magnitude of lattice enthalpy of KCl in  is (Nearest integer).

Canvas Classes · Accepted Answer

Strategy:
 Construct a Born-Haber cycle for : Enthalpy of formation is the sum of sublimation, ionization, dissociation (half), electron gain, and lattice enthalpies.

Step 1: Write the energy balance

Step 2: Solve for Lattice Enthalpy

.
Magnitude is .

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