What is the condenser's job in a refrigeration cycle?

• A. To cool the high pressure vapor
• B. To increase pressure of the refrigerant
• C. To remove moisture from the refrigerant
• D. To heat the low pressure liquid

Answer: (A)

In a vapor‑compression refrigeration cycle, the condenser's job is to reject heat from the refrigerant as it leaves the compressor. The refrigerant arrives as a high‑pressure, hot vapor, and in the condenser it releases heat to the surrounding air or water. As it loses this heat, the refrigerant condenses into a high‑pressure liquid. This liquid then proceeds to the expansion device, where its pressure drops and it can evaporate again to absorb heat from the space being cooled.

So the key idea is: the condenser cools the high‑pressure vapor and turns it into a liquid by releasing heat to the surroundings. It’s not about increasing pressure (that’s the compressor), removing moisture, or heating the low‑pressure liquid.