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What is co-efficient of performance of a refrigerator ?

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If the temperature of the interior of a refrigerator is 7^@C and the temperature of surroundings is 27^@C , What should be the coefficient of performance of the refrigerator working between these temperature ?

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MBD PUBLICATION-THERMODYNAMICS-QUESTION BANK
  1. Is melting of ice reversible or irreversible process ?

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  2. What is efficiency of an engine where source and sink are at same temp...

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  3. What is co-efficient of performance of a refrigerator ?

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  4. What is work done during Isothermal expansion ?

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  5. What is equation of state in an adiabatic process ?

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  6. What important concept zeroth law of thermodynamics gives ?

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  7. What is internal energy of a system ?

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  8. What is CP and CV ?

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  9. When an ideal gas undergoes an isothermal expansion. Give mathematical...

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  10. What is the efficiency of a heat engine ?

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  11. The change in internal energy in an isobaric process, how represented ...

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  12. When a system goes from one state to another, state/ whether the work ...

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  13. State whether the internal energy of an ideal gas depends only on temp...

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  14. Whether in isothermal expansion of an ideal gas the work done by the g...

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  15. Whether when the door of a refrigerator is open, it can cool the room ...

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  16. Which among Cp and Cv is greater and by how much?

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  17. What can be the co-efficient of performance of a freeze at maximum, wh...

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  18. Can a refrigerator be employed as a heat pump to heat a house in winte...

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  19. How can you increase the efficiency of a steam engine?

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  20. Is the free expansion of an ideal gas adiabatic ?

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