Calculate standard entropy change in the \( \mathrm{P} \) reaction:...
0Calculate standard entropy change in the
\( \mathrm{P} \) reaction:
W
\[
\mathrm{Fe}_{2} \mathrm{O}_{3}(s)+3 \mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{Fe}(s)+3 \mathrm{H}_{2} \mathrm{O}(l)
\]
Given: \( \mathrm{S}_{\mathrm{m}}^{\circ}\left(\mathrm{Fe}_{2} \mathrm{O}_{3}, \mathrm{~S}\right)=87.4, \mathrm{~S}_{\mathrm{m}}^{\circ}(\mathrm{Fe}, \mathrm{S})=27.3 \),
\[
\begin{array}{l}
S_{m}^{\circ}\left(\mathrm{H}_{2}, \mathrm{~g}\right)=130.7 \\
S_{m}^{\circ}\left(\mathrm{H}_{2} \mathrm{O}, l\right)=69.9 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}
\end{array}
\]
(1) \( -212.5 \mathrm{JK}^{-1} \mathrm{~mol}^{-1} \)
(2) \( -215.2 \mathrm{JK}^{-1} \mathrm{~mol}^{-1} \)
(3) \( -120.9 \mathrm{JK}^{-1} \mathrm{~mol}^{-1} \)
(4) None of these
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