2.30 One-dimensional, steady-state conduction with no in- ternal energy generation is occurring in a plane wall of constant thermal conductivity. 120 100 7(°C) 60 888 80 40 20 20 0 0.18 m -q= 0, k 4.5 W/m-K T = 20°C h = 30 W/m²-K Air (a) Is the prescribed temperature distribution possible? Briefly explain your reasoning.