What is the state of the refrigerant entering the compressor of a refrigeration system? (A) A) High pressure vapor (B) B) High pressure liquid (C) C) Low pressure vapor (D) D) Low pressure liquid

In a standard refrigeration cycle, the refrigerant undergoes several phase changes and pressure variations as it moves through different components of the system: 1. **Compressor:** The refrigerant enters the compressor as a **low-pressure vapor**. The compressor then increases the pressure of the refrigerant, turning it into a high-pressure vapor. 2. **Condenser:** The high-pressure vapor releases heat and condenses into a high-pressure liquid. 3. **Expansion Valve:** The high-pressure liquid passes through an expansion valve, reducing its pressure and temperature, resulting in a low-pressure liquid. 4. **Evaporator:** The low-pressure liquid absorbs heat from the environment and evaporates back into a low-pressure vapor, ready to re-enter the compressor. Given this cycle, the refrigerant entering the **compressor** is in the state of a **low-pressure vapor**. **Answer:** C) Low pressure vapor