CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1 · Question Q34
Item 34 refers to the following diagram.
A brick wall 10\text{ m} long by 4\text{ m} high is insulated with a material of thermal conductivity 0.70\text{ W m}^{-1}\text{ K}^{-1}. If the insulating material is 210\text{ mm} thick, the interface between the wall and material is at 95^\circ\text{C} and the rate of heat flow into the interface is 4\text{ kW} what is the temperature of the other end of the insulation.
- (A)
98^\circ\text{C} - (B)
94.7^\circ\text{C} - (C)
125^\circ\text{C} - (D)
65^\circ\text{C}
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