Which device maintains a body at a temperature higher than the temperature of the surroundings?
View Answer Explanation
In a heat pump, there is heat leakage from the body to the surroundings.
What is the relation between COP of heat pump and refrigerator?
Heat leakage from a heat pump to surroundings is always greater than work done on pump.
Which of the following statements are true?
Kelvin-Planck’s and Clausius’ statements are
If one of the Kelvin-Planck’s or Clausius’ statement is violated, then other is also violated.
What is the term C.O.P. referred in terms of refrigeration?
Find the C.O.P. of a refrigeration system if the work input is 40 KJ/kg and refrigeration effect produced is 130 KJ/kg of refrigerant flowing.
Find the Relative C.O.P. of a refrigeration system if the work input is 60 KJ/kg and refrigeration effect produced is 130 KJ/kg of refrigerant flowing. Also Theoretical C.O.P. is 3.
Find the C.O.P. of a refrigeration system if the work input is 30 KJ/kg and refrigeration effect produced is 120 KJ/kg of refrigerant flowing.
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