A house walls that are 23 cm thick and have an average thermal conductivity two times that of cork. Assume there are no windows or doors. The walls' surface area is 1750000 cm2 and their inside surface is at 23°C, while their outside surface is at 5°C. (Thermal conductivity of cork is 0.042 W/m°C) (i) Calculate the rate of heat conduction through house walls in watt? (ii) How many 400W room heaters would be needed to balance the heat transfer due to conduction?(approximate number)

A house walls that are 23 cm thick and have an average thermal conductivity two times that of cork. Assume there are no windows or doors. The walls' surface area is 1750000 cm2 and their inside surface is at 23°C, while their outside surface is at 5°C. (Thermal conductivity of cork is 0.042 W/m°C) (i) Calculate the rate of heat conduction through house walls in watt? (ii) How many 400W room heaters would be needed to balance the heat transfer due to conduction?(approximate number)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 97P: Compare the rate of heat conduction through a 13.0-cm-thick wall that has an area of 10.0 m2 and a...

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