\begin{aligned} &\text { Write the equilibrium expression for the reaction } \mathrm{Fe}_{2} \mathrm{O}_{3(\mathrm{~s})}+3 \mathrm{H}_{2 \mathrm{ig}} \leftrightarrow 2 \mathrm{Fe}_{(\mathrm{s})}+3\\ &\mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})} \end{aligned}

Fig: 1