The base of an old cooking pot has diameter 40 cm and thickness of 7.0 mm....

 

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The base of an old cooking pot has diameter 40 cm and thickness of 7.0 mm. The height of the pot is 20 cm and the thermal conductivity of the metal is 35 Wm ¹K¹. The pot contains boiling water and the bottom of the pot is maintained at 110°C by an electric stove. The room temperature is 25°C. a. What is the rate at which heat is conducted through the bottom of the pot? b. For the moment, ignore any possible energy loss mechanisms. How long would it take to convert 0.85 kg of water to steam? c. Calculate the energy lost to radiation during the process in (b). Assume that the sides of the pot are shiny stainless steel with emissivity 0.3 and that radiation from the surface of the water and bottom of the pot can be ignored. The base of an old cooking pot has diameter 40 cm and thickness of 7.0 mm. The height of the pot is 20 cm and the thermal conductivity of the metal is 35 Wm ¹K¹. The pot contains boiling water and the bottom of the pot is maintained at 110°C by an electric stove. The room temperature is 25°C. a. What is the rate at which heat is conducted through the bottom of the pot? b. For the moment, ignore any possible energy loss mechanisms. How long would it take to convert 0.85 kg of water to steam? c. Calculate the energy lost to radiation during the process in (b). Assume that the sides of the pot are shiny stainless steel with emissivity 0.3 and that radiation from the surface of the water and bottom of the pot can be ignored.