Data given for the following reaction is as follows :
\( \mathrm{FeO}_{(s)} + \mathrm{C}_{(\text{graphite})} \longrightarrow \mathrm{Fe}_{(s)} + \mathrm{CO}_{(g)} \)
The minimum temperature in \( \text{K} \) at which the reaction becomes spontaneous is _______. (Integer answer)
