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When is heat exchanged during the refrigeration cycle?

During the initial condensation and final expansion of the refrigerant.
During the initial expansion and final condensation of the refrigerant.
During the pumping of hot air into the expansion valve.
During compression and heating of the refrigerant into a super hot vapor.

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DevDev067
During the pumping of hot air into the expansion valve.https://en.wikipedia.org/wiki/Heat_pump_and_refrigeration_cycle      If I am not right I am so sry

SSDDSS02
Heat is exchanged through conduction causing evaporation of the gas. Then the gas is condensed through a compressor, and the cycle repeats. A heat pump is a machine or device that moves heat from one location (the 'source') at a lower temperature to another location (the 'sink' or 'heat sink') at a higher temperature using mechanical work or a high-temperature heat source.

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