CAPE Physics Unit 1 · 2012 · 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 W
- (D)585 W
The answer is shown once you've answered.
Practise this question