Determine the heat-transfer rate per square meter of wall area for the case of a furnace with inside air at 1340 k. the furnace wall is composed of a 0.106-m layer of fireclay brick and a 0.635-cm thickness of mild steel on its outside surface. heat transfer coefficients on inside and outside wall surfaces are 5110 and 45 w/m2 ? k, respectively; outside air is at 295 k. what will be the temperatures at each surface and at the brick-steel interface?