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Given the following infonnation of magne...

Given the following infonnation of magnesium oxygen, and magneisurn oxide calculate the second electron gain enthalpy for oxygen {i .e. for `O- (g)+c^(-) rarr O^(2-)(g)]`
for Mg(s) ` DeltaH_(sab)= +148 kJ//mol " "` bond dissociation energy for `O_(2) = +499 ` kj/mol
`1^(st)` ionization energy for Mg = +738 kJ/mol `" " 1^(st)` electron gain enthalpy for O = - 141 kJ/mol
`2^(nd)` ionization energy for Mg = +1450 kJ/mol `" "` for MgO (s), lattice energy = +3890kJ/mol
for MgO(s), enthalpy of formation =-602kJ/mol

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+844 kJ/mol
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