//To Calculate the Amount of Heat flowing per second through the cube. //Example 28.1 clear; clc; x=0.1;//Edge Length of the Copper Cube in cm A=x^2;//Area of cross section in cm^2 K=385;//Thermal Conductivity of Copper in W/m-deg Celsius T1=100;//Temperature of the first face T2=0;//Temperature at the second face Rf=K*A*(T1-T2)/x;//Amount of Heat flowing per second (del(Q)/del(t)) printf("The amount of heat flowing per sec=%d W",Rf);