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Question
What is refrigeration?
Options:
A .  A process where is work is done is to add heat from one system to another
B .  A process where heat is used by the system to do work
C .  A process where work is done to move heat from one system to another
D .  A process where work is done to add cold air into the system
Answer: Option C
Answer: (c).A process where work is done to move heat from one system to another

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