The vapor leaving the compressor is lower in pressure than vapor entering the compressor.

• A. True
• B. Not sure
• C. It depends
• D. False

Answer: (D)

In a vapor-compression refrigeration cycle, the compressor’s job is to raise the pressure of the refrigerant vapor. The vapor entering is at low suction pressure, and the compressor does work on it, increasing both its pressure and temperature. As a result, the vapor leaving the compressor is at a higher pressure than what entered. That’s why this statement is false—the cycle moves the refrigerant into the high-pressure side after compression.