Question $4$ Energy balance for reactive process

$(20)$

Consider the nrocess below.

${?}_{13}^i$

Calculate the feed tempertaure of air.

Thermodynamic Data

Air: $C_p(\frac{J}{m}ol*C)=0\mathrm{.}02894+0\mathrm{.}4147{10}^{-5}T+0\mathrm{.}3191{10}^{-8}{T}^2-1\mathrm{.}965{10}^{-12}{T}^3$

Ammonia: $C_p=35\mathrm{.}15{10}^{-3}+2\mathrm{.}954{10}^{-5}T+0\mathrm{.}4421{10}^{-8}{T}^2-6\mathrm{.}68610-12T^3$