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One surface of the plane wall with a thickness of 25 cm and a heat transfer coefficient of 15 W / mK is kept at 90 C, while the other surface is in contact with the air. The temperature of the air is 20 ºC and the heat transfer coefficient in the environment is 25 W / m2K. Find the temperature of the surface in contact with the air.

One surface of the plane wall with a thickness of 25 cm and a heat transfer coefficient of 15 W / mK is kept at 90 C, while the other surface is in contact with the air. The temperature of the air is 20 ºC and the heat transfer coefficient in the environment is 25 W / m2K. Find the temperature of the surface in contact with the air.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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One surface of the plane wall with a thickness of 25 cm and a heat transfer coefficient of 15 W / mK is kept at 90 C, while the other surface is in contact with the air. The temperature of the air is 20 ºC and the heat transfer coefficient in the environment is 25 W / m2K. Find the temperature of the surface in contact with the air.

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