Chill with Confidence: Ace the 2025 ASE Air Conditioner Exam and Keep Cool Under the Hood!

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What happens to the refrigerant as it passes through the condenser?

It evaporates and cools

It changes from a gas to a liquid

As the refrigerant passes through the condenser, it undergoes an important phase change from a gas to a liquid. This process occurs as the refrigerant releases heat absorbed from the cabin and the surrounding environment.

In the condenser, the high-pressure gas refrigerant enters and as it passes through the coils, it comes into contact with air or a coolant, which causes it to lose thermal energy. This heat loss is essential for the phase change to occur, allowing the refrigerant molecules to come closer together and transition into a liquid state.

This is a key step in the refrigeration cycle, as it enables the refrigerant to be pressurized and subsequently expand back into a gas in the evaporator, where it absorbs heat again and cools the vehicle interior. Understanding this phase change is crucial for anyone studying automotive air conditioning systems, as it illustrates the fundamental operation of these systems.

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It freezes

It expands to a gas

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