What is the correct order of steps in the vapor-compression process?

The correct order of steps in the vapor-compression process is indeed compression, condensation, expansion, and then vaporization.

In the vapor-compression cycle, the process begins with the compressor, which takes in low-pressure vapor refrigerant and compresses it, increasing the pressure and temperature of the refrigerant gas. This high-pressure gas then flows into the condenser, where it releases heat to the surroundings and condenses into a high-pressure liquid.

After condensation, the refrigerant moves to the expansion valve, where it experiences a drop in pressure as it expands, leading to a reduction in temperature. The low-pressure refrigerant is then in a state to absorb heat from the environment as it enters the evaporator, where it evaporates back into a low-pressure vapor, completing the cycle.

This sequence is essential for the efficient function of refrigeration and air conditioning systems, as each step prepares the refrigerant for the next phase in the cycle, ensuring that heat is absorbed and expelled correctly to maintain desired temperatures.