A heat pump which runs (1/3)rd of time removes on an average 2400 kJ/hr of heat. If power consumed is 0.25 kW, what is the value of the C.O.P.?
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C.O.P. of the refrigerator is always __________ the C.O.P. of the heat pump when both are working between the same temperature limits.
Which device maintains a body at a temperature lower than the temperature of the surroundings?
What does a refrigerant do?
Coefficient of performance(COP) is defined as
Which device maintains a body at a temperature higher than the temperature of the surroundings?
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
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