Formula Used

The coefficient of Thermal Conductivity K for a material is given by

Where A = Area of cross section of the rod ( π*r*r where r is the radius of the copper rod (D/2)).

θ1 & θ2 = Steady temperatures at the two fixed point of the rod in steady state.

d = Distance between two thermometer T1 and T2.

m = Mass of water collected per second.

θ3 & θ4 = Steady temperatures of water at exit and at entrance respectively.