Calculate the lattice enthalpy of potassium fluoride from the following data. enthalpy of formation of K(g) : +89 kJ.mol-1
First ionization energy of K(g) : +418 kJ.mol-1
Enthalpy of formation of F(g) : +79 kJ.mol-1
Electron affinity of F(g) : +328 ( H = -328) kJ.mol-1
Enthalpy of formation of KF(s) : -567 kJ.mol-1
A) 1481 kJ.mol-1
B) 825 kJ.mol-1
C) 904 kJ.mol-1
D) 497 kJ.mol-1
E) 347 kJ.mol-1
Correct Answer:
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