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On a cold winter day, the outside temperature is -20°C and the inside temperature is maintained at 20°C. There is a net heat flow to the outside through the walls, roof, etc., of 20 kW. At what rate is the entropy of the air outside the house changing as a result of this process? - +500 W/K - -1000 W/K - +79 W/K - +1000 W/K - +99 W/K
Sagot :
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