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Calculatethe standard free energy change for the reaction 2 SO3(g)-->2 SO2(g) + O2(g)at 800.0 °C given the following information: ΔHf° (kJ/mol): SO3(g): -395.7 SO2(g): -296.8 S° (J / mol •K): SO3(g): 256.8 SO2(g): 248.2 O2(g): 205.0 a.−3.70 kJ d.+348.0 kJ b.+47.6 kJ e.+399.3 kJ c.−399.3 kJ