Air Conditioning Repair Certification (ETI) Practice Exam 2025 - Free Air Conditioning Repair Practice Questions and Study Guide

Question: 1 / 400

What happens to latent heat as it transfers from the refrigerant space to the refrigerant in the evaporator?

It increases the temperature of the refrigerant

It decreases the system pressure

It is absorbed by the refrigerant

When latent heat transfers from the refrigerant space to the refrigerant in the evaporator, it is absorbed by the refrigerant. This process is critical in the functioning of an air conditioning system. During evaporation, refrigerant within the evaporator coil absorbs this latent heat from the surrounding air or fluid. This heat absorption is essential because it enables the refrigerant to change states from liquid to vapor.

As the refrigerant absorbs latent heat, it provides the necessary energy for this phase change without an increase in temperature, allowing the system to effectively remove heat from the environment. This process not only facilitates cooling but also maintains the efficiency of the system as it cycles through its refrigeration cycle.

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It causes refrigerant to condense

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