Q3: Air flows at (125C) in a thin wall stainless steel tube with (h=70W/m2.C). The inside diameter of the tube is (2.5cm) and the wall thickness is (0.5mm). The tube is exposed to an environment with (h=10W/m2.C) and (T=15C). Thermal conductivity of the steel is (k=17W/m.C). Calculate the heat transfer loss per meter of length. Also calculate the tube interface temperature of its inner surface