Water is being boiled in an open kettle that has a 0.52-cm-thick circular aluminum bottom with a radius of 12.0 cm. If the water boils away at a rate of 0.409 kg/min, what is the temperature of the lower surface of the bottom of the kettle? Assume that the top surface of the bottom of the kettle is at 100.0∘C.
Answers: 2
radius of the base of the kettle, 
temperature of the top surface of the kettle base, 
rate of heat transfer through the kettle to boil water, 
We have the latent heat vaporization of water, 
and thermal conductivity of aluminium, 
area of the surface through which conduction occurs
temperature of the bottom surface
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