The ionization energy for potassium is 419 kJ/mol. The electron affinity for bromine is -325 kJ/mol. Use these values and Hess's law to calculate the change in enthalpy for the following reaction per mole of reagent:
K(g)+Br(g)→K+(g)+Br−(g), ΔH=?
Express your answer with the appropriate units.
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