10.18 A brass boiler has a base area of and thickness 1.0 cm

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics

Problem

10.18 A brass boiler has a base area of

0.15 \mathrm{~m}^{2}

and thickness 1.0 cm . It boils water at the rate of

6.0 \mathrm{~kg} / \mathrm{min}

when placed on a gas stove. Estimate the temperature of the part of the flame in contact with the boiler. Thermal conductivity of brass

=109 \mathrm{~J} \mathrm{~s}^{-1} \mathrm{~m}^{-1} \mathrm{K}^{-1}

; Heat of vaporisation of water

=2256 \times 10^{3} \mathrm{~J} \mathrm{~kg}^{-1}