Final answer:
Refrigerators and heat pumps function based on thermodynamics laws by compressing and expanding gases to regulate temperature differences.
Explanation:
Refrigerators and heat pumps both operate based on thermodynamic principles. Refrigerators remove heat from a cold space to keep it cool, while heat pumps transfer heat from a cold area to a warmer space. They achieve this by compressing and expanding gases, utilizing the thermodynamics laws to maintain the desired temperature difference.
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