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Q. |
In Bell – Colemann refrigerator for the same temperature range |
A. | COP of dense air system is equal to COP of open air system |
B. | COP of dense air system is lower than COP of open air system |
C. | COP of dense air system is higher than COP of open air system |
D. | COP of dense air system may be higher or lower than COP of open air system depending upon pressure ratio. |
Answer» C. COP of dense air system is higher than COP of open air system |
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