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Question 3. [20 marks] The direction of heat transfer across a wall is showing by the red arrow. If the temperature difference between the top

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Question 3. [20 marks] The direction of heat transfer across a wall is showing by the red arrow. If the temperature difference between the top and bottom is 10 C and the thermal conductivity of the wall is 1.6 W/m.K, determine: a) The heat flux. (10 marks) b) The rate of heat transfer. (10 marks) (Assume H = 2 m, W= 20 cm and L = 6 m) H L W Figure 1: heat transfer across a wall

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