An Idealrefrigeratorhas afreezerattemperature-12^(@)C . Thecoefficientofperformanceof theengineis 5.The temperatureof the air(towhichthe heatejected ) is

An Idealrefrigeratorhas afreezerattemperature-12^(@)C . Thecoefficient

1.	An Idealrefrigeratorhas afreezerattemperature-12^(@)C . Thecoefficientofperformanceof theengineis 5.The temperatureof the air(towhichthe heatejected ) is
Answer» `50^(@)C` `45.2^(@)C` `40.2^(@)C` `37.5^(@)C` SOLUTION :COP`(beta)=(T_(L))/(T_(H)-T_(L))=(-12^(@))/(T_(H)+12^(@))` `5=(261)/(T_(H)+285)RARR""T_(H)=-232.8K=40.2^(@)C`