3a. Consider the reaction CO(g) + 3H₂(g)CH₄(g) + H₂O(g) for which H = -206.1 kJ and S = -214.7 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 2.345 moles of CO(g) react under standard conditions at 298.15 K.

S_universe = ______ J/K

(2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored choose 'reactant favored'.

3b. Consider the reaction 3Fe₂O₃(s) + H₂(g)2Fe₃O₄(s) + H₂O(g) for which H = -6.000 kJ and S = 88.70 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.614 moles of Fe₂O₃(s) react under standard conditions at 298.15 K.

S_universe = ______ J/K

(2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored, choose 'reactant favored'.

3c. Consider the reaction 2CO₂(g) + N₂(g)2CO(g) + 2NO(g) for which H = 746.6 kJ and S = 198.0 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.959 moles of CO₂(g) react under standard conditions at 298.15 K.

S_universe = ______J/K

(2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored, choose 'reactant favored'.