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Question 1 A plastic panel of area A=1ft2 and thickness Y=0.252in. was found to conduct heat at a rate of 3.0W at steady state with

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Question 1 A plastic panel of area A=1ft2 and thickness Y=0.252in. was found to conduct heat at a rate of 3.0W at steady state with temperatures To=24C and T1=26C imposed on the two main surfaces. What is the thermal conductivity of the plastic in cal/(cmsK) at 25C ? [4 marks]

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