Consider the concrete $($cement$)$ wall shown below. Heat transfers through the wall by convection and conduction only. Outdoor temperature $(T_{\text{o}\text{u}\text{t}})$ is $5C$ and indoor temperature $(T_{in})$ is $25C.$ On the exterior side of the wall, the surface temperature of the wall $(T_2)$ is $9C$ and wind is blowing at $5\mathrm{.}5\frac{m}{s}.$ Calculate the surface temperature of the interior side of the wall $(T_1).$ The thickness of the wall is $2$ inches, and the total wall area is $1m^2.$ Assume steady$-$state heat transfer.

C