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A wall is made up of two layers, LI (outer layer) and L2 (inner layer). Both layers are 5 in thick. The outer layer has a thermal conductivity of 1 BTU/ft-h-°F while the thermal conductivity of the inner layer is 0.1 BTU/ff-h-OF. It is found out that LI has a temperature aof 500 °F while that of L2 is 1500 °F. Determine the total rate of heat transfer (in BTU/h-ff?).

A wall is made up of two layers, LI (outer layer) and L2 (inner layer). Both layers are 5 in thick. The outer layer has a thermal conductivity of 1 BTU/ft-h-°F while the thermal conductivity of the inner layer is 0.1 BTU/ff-h-OF. It is found out that LI has a temperature aof 500 °F while that of L2 is 1500 °F. Determine the total rate of heat transfer (in BTU/h-ff?).

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A wall is made up of two layers, LI (outer layer) and L2 (inner layer). Both layers are 5 in thick. The outer layer has a thermal conductivity of 1 BTU/ft-h-°F while the thermal conductivity of the inner layer is 0.1 BTU/ff-h-OF. It is found out that LI has a temperature aof 500 °F while that of L2 is 1500 °F. Determine the total rate of heat transfer (in BTU/h-ff?).
Transcribed Image Text:A wall is made up of two layers, LI (outer layer) and L2 (inner layer). Both layers are 5 in thick. The outer layer has a thermal conductivity of 1 BTU/ft-h-°F while the thermal conductivity of the inner layer is 0.1 BTU/ff-h-OF. It is found out that LI has a temperature aof 500 °F while that of L2 is 1500 °F. Determine the total rate of heat transfer (in BTU/h-ff?).
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