CAPE Physics Unit 1 · 2010 · Paper 1 · Question Q37
A contractor builds an office window of height 150\text{ cm} and width 200\text{ cm} with a glass pane of thickness 0.5\text{ cm}. The temperature difference across the glass is 15\text{ K} and the thermal conductivity of the glass is 0.65\text{ W m}^{-1}\text{K}^{-1}. Calculate the heat energy per second conducted through the window.
- (A)1.63 kW
- (B)5.85 kW
- (C)163 kW
- (D)585 kW
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