The interior of a refrigerator has a surface area of 6.2 m2. It is insulated by a 2 cm thick material that has a thermal conductivity of 0.0199 J/m: • • C. The ratio of the heat extracted from the interior to the work done by the motor is 5.5 % of the theoretical maximum. The temperature of the room is 27.6 •C, and the temperature inside the refrigerator is 6.6 •C. Determine the power required to run the compressor. Answer in units of W.

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Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.