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Using the thermodynamic data below, and a value of -717 kJ/mol for the Ulattice enthalpy for KCl, calculate the ionization energy of K. Hint: Remember to plug in numbers to the equation given in course content.

Enthalpy of ionization K = +89 kJ/mol

Enthalpy of formation KCl(s) = -437 kJ/mol

Enthalpy of formation Cl(g) = +121 kJ/mol

Electron affinity of Cl(g) = -349 kJ/mol

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