5- A stainless steel pan whose thermal conductivity is 15W/m.C has a flat bottom with a diameter of 20cm and a thickness of 0.8cm. Heat is transferred steadily to boiling water in the pan through its bottom at a rate of 850 W. If the inner surface of the bottom of the pan is at 102C, then the temperature of the outer surface of the bottom of the pan is: a) 2.54C b) 116.44C c) 103.43C d) 112.62C e) 118.62C