Question

Consider the reaction \[ 2 \mathrm{C}_{2} \mathrm{H}_{6}(g)+7 \mathrm{O}_{2}(g) \rightarrow 4 \mathrm{CO}_{2}(g)+6 \mathrm{H}_{2} \mathrm{O}(g) \] for which \( \Delta H^{\circ}=-2855 \mathrm{~kJ} \) and \( \Delta S^{\circ}=92.70 \mathrm{~J} / \mathrm{K} \) at \( 298.15 \mathrm{~K} \). 1. Calculate the entropy change of the UNIVERSE when 1.768 moles of \( \mathrm{C}_{2} \mathrm{H}_{6}(\mathrm{~g}) \) react under standard conditions at \( 298.15 \mathrm{~K} \). \[ \Delta S_{\text {universe }}= \] \( \square \) \( \mathrm{J} / \mathrm{K} \) 2. Is this reaction reactant or product favored under standard conditions? \( \square \) 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'. \( \square \)

          Consider the reaction
\[
2 \mathrm{C}_{2} \mathrm{H}_{6}(g)+7 \mathrm{O}_{2}(g) \rightarrow 4 \mathrm{CO}_{2}(g)+6 \mathrm{H}_{2} \mathrm{O}(g)
\]
for which \( \Delta H^{\circ}=-2855 \mathrm{~kJ} \) and \( \Delta S^{\circ}=92.70 \mathrm{~J} / \mathrm{K} \) at \( 298.15 \mathrm{~K} \).
1. Calculate the entropy change of the UNIVERSE when 1.768 moles of \( \mathrm{C}_{2} \mathrm{H}_{6}(\mathrm{~g}) \) react under standard conditions at \( 298.15 \mathrm{~K} \).
\[
\Delta S_{\text {universe }}=
\]
\( \square \) \( \mathrm{J} / \mathrm{K} \)
2. Is this reaction reactant or product favored under standard conditions?
\( \square \)
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'.
\( \square \)

Consider the reaction

2 C2H6(g)+7 O2(g) → 4 CO2(g)+6 H2O(g)

for which Δ H^∘=-2855 kJ and Δ S^∘=92.70 J / K at 298.15 K.
1. Calculate the entropy change of the UNIVERSE when 1.768 moles of C2H6( g) react under standard conditions at 298.15 K.

Δ Suniverse =

□ 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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