2.1 A composite wall shown below has uniform temperatures. You are given that the thermal conductivities of the wall materials are: ka = 70 W/m.K, ka = 60 W/m.K, kc = 40 W/m.K, and ko = 20 W/m.K. With...

Extracted text: 2.1 A composite wall shown below has uniform temperatures. You are given that the thermal conductivities of the wall materials are: ka = 70 W/m.K, ka = 60 W/m.K, kc = 40 W/m.K, and ko = 20 W/m.K. With this information you are required to (i) Determine the rate of heat transfer through this section of the wall and (ii) The temperatures at the interfaces. (Note the surfaces normal to heat transfer direction are isothermal). TAS = 200°C Tos = 50°C в 3 ст A 3 ст 46 cm 4 cm 2 cm 2.5 cm 2.2 There are several factors that have a direct bearing on the thermal conductivity value. List four factors other than the actual material properties that affect thermal conductivity. 6 cm