The first and second ionization energies of are experimentally determined to be and respectively. What is the total enthalpy change (in ) for the overall process ?

Question

The first and second ionization energies of $Mg$ are experimentally determined to be $178 	ext{ kcal/mol}$ and $348 	ext{ kcal/mol}$ respectively. What is the total enthalpy change (in $	ext{kcal/mol}$) for the overall process $Mg_{(g)} ightarrow Mg^{2+}_{(g)} + 2e^-$?

Prashant Kotian · Accepted Answer

Correct answer: 526. The total energy required to remove multiple electrons from a ground state atom is simply the arithmetic sum of the successive ionization energies. Total energy .

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