calculate the rate of heat flowing out of the hot surface through the rod and the temp at the insulated end of the rod.

Question

An iron rod (K= 41.5W/mK) of 15mm diameter and 160mm long extends out of a hot surface of temp 150⁰C into environment at 36⁰C. the free end of the rod is insulated. If the film heat transfer coefficient is 25W/m²K, calculate the rate of heat flowing out of the hot surface through the rod and the temp at the insulated end of the rod.