Final answer:
The function of an evaporator in a refrigerator is to absorb heat as the refrigerant changes from liquid to gas. The evaporator is essential in providing the cooling effect necessary for refrigeration systems. This component exemplifies the practical application of thermodynamic principles.
Step-by-step explanation:
The question posed concerns the component known as an evaporator in the refrigeration cycle of a refrigerator. To answer the query in the educational context provided, the function of an evaporator is to absorb heat from the refrigerated space or compartment. This is achieved by the refrigerant inside the evaporator, which extracts heat as it changes its state from liquid to gas. This process is crucial in refrigeration and air conditioning systems because it is directly responsible for the cooling effect.
Now let's consider the given options in the question: (a) The evaporator converts gaseous refrigerant into a liquid; (b) The evaporator converts solid refrigerant into liquid; (c) The evaporator converts solid refrigerant into gas. The correct function of an evaporator is closely related to option (c), but with a slight correction. The evaporator actually converts liquid refrigerant into gas, thereby absorbing heat from the surroundings, which in turn cools the refrigerator's compartment.
The refrigeration cycle plays a key role in thermodynamics, specifically in applications concerning heat engines, heat pumps, and refrigerators. It directly relates to the practical implementation of the first and second laws of thermodynamics. The evaporator is the site where the refrigerant undergoes an endothermic phase change, which is foundational to the refrigeration process.