One end of a copper rod 30 cm long is firmly connected to a wall that is maintained at 200C The other end is firmly connected to a wall that is maintained at 93C Air is blown across the rod so that a heat transfer coefficient of 17 W m2 C is maintained The diameter of the rod is 12 5 mm The tempera...

38 d 125 mm L 30 cm h I7 55 3084 c ...

One end of a copper rod 30 cm long is firmly connected to a wall that is

Question:

One end of a copper rod 30 cm long is firmly connected to a wall that is maintained at 200ºC. The other end is firmly connected to a wall that is maintained at 93ºC. Air is blown across the rod so that a heat-transfer coefficient of 17 W/m2 ∙ ºC is maintained. The diameter of the rod is 12.5 mm. The temperature of the air is 38ºC. What is the net heat lost to the air in watts?