問題詳情

21.Some properties of glass are listed here.
  

glass window pane is 2.7 m high, 2.4 m wide, and 2.0 mm thick. The temperature at the inner surface of the glass is 22℃ and at the outer surface 4.0℃. How much heat is lost each hour through the window under steady state conditions?
(A)1.7x108J,
(B)4.7x104J,
(C)1.7x106J,
(D) 1.7 x 105 J,
(E)4.7 x 101 J.

參考答案

答案：A

統計：A:0,B:0,C:0,D:0,E:0

難度：計算中