AAI ATC Junior Executive 25 Mar 2021 Shift 3 Paper

A brass boiler has a base area of 0.2 m² and thickness 1.0 cm, It boils water at the rate of 6.0 kg/min when placed on a gas stove. Calculate the temperature of the part of the flame in contact with the boiler. Also the temperature at which water boils is 100° C Thermal conductivity of brass = 109 Js^-1 m^-1 K^-1, heat of vaporization of of water = 2256 × 10³ J Kg^-1 ?