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Find cop of refrigerator which is connected to the engine having workdone 50J and heat used by it is 200J Quick Answer please |
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Answer» fficient of performance is given by,where is the heat USED and is work done.In the question,Then, coefficient of performance,Hence 4 is the answer. More about coefficient of performance:-The refrigerator is doing work in order to absorb a quantity of heat from sink (objects in refrigerator) at low temperature and to supply a quantity of heat into SOURCE (ATMOSPHERE) at high temperature.Then work done is,Negative SIGN for is because the heat is absorbed by working substance.Thus coefficient of performance,For a carnot refrigerator,This implies, coefficient of performance,We can write coefficient of performance as,by dividing both numerator and denominator each by We KNOW that efficiency,Thus, coefficient of performance, |
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