Pregunta: 3. (6 pts.) Utilice la Ley de Hess para calcular AGºrxn dada la siguiente información. NO(g) + O(g) + NO2(g) AG rxn = ? 2 03(g) → 302(9) O2(g) 2 0(g) NO(g) + O2(g) → NO2(g) + O2(9) AG rxn = +489.6 kJ AG9rxn = +463.4 kJ AGørxn = -199.5 kJ

Write out the reactions given:

[ 2 \text{O}_3(g) \rightarrow 3 \text{O}2(g) \quad \Delta G{\text{rxn}}^{\circ} = +489.6 \text{kJ} ]

[ \text{O}2(g) \rightleftharpoons 2 \text{O}(g) \quad \Delta G{\text{rxn}}^{\circ} = +463.4 \text{kJ} ]

[ \text{NO}(g) + \text{O}(g) \rightarrow \text{NO}2(g)\quad \Delta G{\text{rxn}}^{\circ} = -199.5 \text{kJ} ]