At $\mathrm{T}(\mathrm{K}), 3$ moles of hydrogen and 1 mole of $\mathrm{N}_2$ are allowed to react to form…
At $\mathrm{T}(\mathrm{K}), 3$ moles of hydrogen and 1 mole of $\mathrm{N}_2$ are allowed to react to form ammonia. When 1 mole of ammonia is formed, the total pressure in the vessel is $15 \mathrm{~atm}$. The partial pressure of $\mathrm{N}_2$ in the vessel (in atm) is