The chemical equation for the combustion of magnesium in sulfur dioxide is 3 Mg (s) + SO2 (8)
+ MgS (s) + 2 MgO (s)
AH°rxn
n = ?
In this reaction magnesium is the fuel and sulfur dioxide is the oxidizer. Calculate the value of A Hºrxn
for the reaction above given the following A Hºrxn values:
1. ) Mg (s) + 02 (8) MgO (s) AH°rxn 1 = -601.7 kJ
2. ) Mg(s) + S (s) + MgS (s) AH°rxn 2 = -598.0 kJ
3. ) S (s) + O2(g) +502 (8) AH°rxn 3 = -296.8 kJ
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