A windowpane is half a centimeter thick and has an area of 2.0 m2 . The temperature difference between the inside and outside surfaces of the pane is 15°C. What is the rate of heat flow through this window? (Thermal conductivity for this glass is 0.84 W / m •°C.)

a. 5000 J/s
c. 1300 J/s
b. 2500 J/s
d. 630 J/s


A

Physics & Space Science

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