A straight copper rod of length 0.50m and uniform cross-sectional area 2.0cm2 has its two ends maintained at 100∘C and 20∘C respectively under steady conditions. For copper, take the thermal conductivity as 400W m−1K−1.
(a) Calculate the rate at which heat flows through the rod under these conditions.
(b) How much heat energy is conducted from the hot end to the cold end in 5min?