Heat transfer

Heat transfer problem 1

The wall of a refrigerator consists of four layers. The first and third have a thickness of 5 cm and a thermal conductivity of , while the second and fourth have a thickness of 2 cm and a thermal conductivity of . The first layer encloses the interior of the refrigerator with a temperature of , and the fourth layer is outside, where the temperature is . What is the temperature in the middle of the third layer?


material editor: Habeeb Adenle