For the following reaction at 27 °C, calculate ∆S°_rxn, ∆S_surr, and ∆S_tot. Determine if reaction is favorable.
Fe₂O₃ (s) + 3 H₂ (g) → 2 Fe (s) + 3 H₂O (g) ∆H_rxn = 98.8 kJ

∆S°_rxn = 0.1415 J/K, ∆S_surr = 0.3292 J/K, ∆S_tot = −0.1877 J/K, not favorable

∆S°_rxn = 141.5 J/K, ∆S_surr = −329.17 J/K, ∆S_tot = −187.67 J/K, not favorable

∆S°_rxn = 70.75 J/K, ∆S_surr = 164.58 J/K, ∆S_tot = −93.84 J/K, favorable

∆S°_rxn = 283.0 J/K, ∆S_surr = 658.34 J/K, ∆S_tot = −375.34 J/K, favorable