Entropy: 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 25 kW. What is the rate of increase of the entropy of the universe as a result of this heat flow?
A. 13 W/K
B. 25 W/K
C. 85 W/K
D. 99 W/K
E. 0 W/K
Answer: A
Physics & Space Science
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