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40. A stainless steel container has a surface area of 0.5 m² and thickness of 2 cm. If the container is fully filled with 57°C hot-water and the temperature in the room is 27°C, what is the rate of energy loss through the container? (The thermal conductivity of stainless steel is 80 W/m/K)
(A) 30 kW
(B) 60 kW
(C) 120 kW
(D) 180 kW
(E) 210 kW

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	wynette 高三上 (2019/09/16) 熱能透過.....看完整詳... (內容隱藏中) 查看隱藏文字

面試倒楣鬼-22幸運上後西大二上 (2020/05/08)

△q/△t = 80*0.5*30/0.02 = 60,000W = 60KW

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