I need help with 21

consisting of four steps: 021 10.0 points 1) an isothermal expansion at 314 K from The interior of a refrigerator has a surface 15.4 L to 35 L : area of 2.6 if. It is insulated by a 2.2 cm 2) cooling at constant volume to 162 K : thick material that has a thermal conductive 3) an isothermal compression to its original ity of 0.0127 J/m - s." C. The ratio of the heat krause (krk2852) - Homework 13, thermodynamics, engines 23-24 - tejeda - (Ross(PHY1 1) 3 extracted from the interior to the work done by the motor is 7.1% of the theoretical maxi- mum. The temperature of the room is 16.5'C, and the temperature inside the refrigerator is 6.5'C. Determine the power required to run the compressor. Answer in units of W