1.

An idealrefrigeratorkeepsitscontentat 0^(@)Cwhiletheroomtemperatureis 27^(@)C.Calculateitscoefficientof performance.

Answer»

Solution :CONTENT placed at TEMPERATURE `T_(L)=0^(@)C=0+273`
`T_(L)=273K`
REFRIGERATOR placed at temperature `T_(H)=27^(@)C=27+273=300K`
Coefficient of performance `(beta)=(T_(L))/(T_(H)-T_(L))=(273)/(300-273)=(272)/(27), beta =10.11`


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