1. (20 pts.) A furnace wall consisting of 0.25 m of fire clay brick, 0.20 m of kaolin, and a 0.10 m outer layer of masonry brick is exposed to furnace gas at 1370 K with air at 300 K adjacent to the outside wall. The inside and outside convective heat transfer coefficients are 115 and 23 W/mK, respectively, Determine the heat loss per square foot of wall and the temperature of the outside wall surface under these conditions