Calculate the Lattice Enthalpy of Potassium Fluoride from the Following

question 45

Multiple Choice

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}

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