3. (4 points). Water is to be boiled at atmospheric pressure in a mechanically polished stainless steel pan placed on top of a heating unit as shown in the figure below. The inner surface of the bottom of the panis maintained at 108°C. You may assume that the bottom of the pan is the only surface for boiling convective heat transfer. The diameter of the bottom of the pan is 50 cm.

a). Determine the rate of heat transfer to the water. b) Determine the evaporation rate of water in kg/h.