1. The rate of heat flow through a 25-cm wall composed of ordinary brick (k = 0.69 -) is 237,000 the wall is 51C. W m.K J m.hr The outer face temperature of To be done: I a) Sketch a diagram of the system showing the TH and TL, thickness x, and the direction of the flow of heat (refer to the example problem solutions, and sketch like an engineer.) b) Convert the heat flow of 237,000 Watts m.K c) Determine the inner face temperature of the wall m .hr to