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+clear;

+clc;

+printf("\t\t\tProblem Number 11.1\n\n\n");

+// Chapter 11: Heat Transfer

+// Problem 11.1 (page no. 553) 

+// Solution

+

+

+deltaX=6/12; //6 inch = 6/12 feet //deltaX=length //unit:feet

+k=0.40; //Unit:Btu/(hr*ft*F) //k=proportionality constant //k=thermal conductivity //From the table

+T1=150; //temperature maintained at one face //fahrenheit

+T2=80; //tempetature maintained at other face //fahrenheit

+deltaT=T2-T1; //fahrenheit //Change in temperature

+Q=(-k*deltaT)/deltaX; //Heat transfer per square foot of wall //Unit:Btu/hr*ft^2

+printf("Heat transfer per square foot of wall is %f Btu/hr*ft^2",Q);