different types of heat transfer process.
-conduction * through a solid or stationary fluid
-convection * from a surface to a moving fluid
-radiation * net radiation heat exchange between the surface / thermal radiation/
-consider the temperature distribution in a plane wall at steady state with no heat sink or heat source inside the wall the appropriate equation is
-if the ''thermal conduction ''of the material is make for the wall is content the solution conduction be found by two time in temptation the the metal solution is