Calculate Steady-State Temperature

Question

A 0.2 m thick plane wall has its temperature on one side maintained at 50^oC and has a thermal conductivity of 15 W/m*k. The other side is exposed to air at 30^oC with a convection coefficient of 7 W/m²*K. Determine the steady state temperature of the side exposed to the air.

Answer 1

Here is a video where I demonstrate how to find the missing temperature by applying conservation of energy to a control surface.