Question

Consider the reaction \[ 2 \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})+3 \mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+2 \mathrm{SO}_{2}(\mathrm{~g}) \] for which \( \Delta H^{\circ}=-\mathbf{1 . 1 2 4} \times 10^{3} \mathrm{~kJ} \) and \( \Delta \mathrm{S}^{\circ}=\mathbf{- 3 9 0 . 7} \mathrm{J} / \mathrm{K} \) at \( 298.15 \mathrm{~K} \). (1) Calculate the entropy change of the UNIVERSE when 2.098 moles of \( \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g}) \) react under standard conditions at \( 298.15 \mathrm{~K} \). \[ \Delta \mathrm{S}_{\text {universe }}=\square \mathrm{J} / \mathrm{K} \] (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'.

          Consider the reaction
\[
2 \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})+3 \mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+2 \mathrm{SO}_{2}(\mathrm{~g})
\]
for which \( \Delta H^{\circ}=-\mathbf{1 . 1 2 4} \times 10^{3} \mathrm{~kJ} \) and \( \Delta \mathrm{S}^{\circ}=\mathbf{- 3 9 0 . 7} \mathrm{J} / \mathrm{K} \) at \( 298.15 \mathrm{~K} \).
(1) Calculate the entropy change of the UNIVERSE when 2.098 moles of \( \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g}) \) react under standard conditions at \( 298.15 \mathrm{~K} \).
\[
\Delta \mathrm{S}_{\text {universe }}=\square \mathrm{J} / \mathrm{K}
\]
(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'.

Consider the reaction

2 H2 S( g)+3 O2( g) ⟶ 2 H2O(l)+2 SO2( g)

for which Δ H^∘=-1 . 1 2 4× 10^3 kJ and ΔS^∘=- 3 9 0 . 7J / K at 298.15 K.
(1) Calculate the entropy change of the UNIVERSE when 2.098 moles of H2 S( g) react under standard conditions at 298.15 K.

ΔSuniverse =□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'.

Added by Andrew C.

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