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A refrigeration cycle extracts heat QL from a refrigeration space that needs to be maintained at...

A refrigeration cycle extracts heat QL from a refrigeration space that needs to be maintained at TL=275K and rejects the heat QH through a condenser to a sink at TH=400K. For all of the cases mentioned below, determine whether the refrigeration cycle is a reversible, irreversible or is an impossible one. You must show proper working in support of your response.

COPR=6
Wnet,in=200kJ,QH=1575kJ
Wnet,in=80kJ,QL=1000kJ
QL=1200kJ,QH=2000kJ

Engineering   Mechanical-Engineering   
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