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1kg of ice, at 20C, is taken out of the freezer and placed in a pot o ...
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1kg of ice, at ?20?C, is taken out of the freezer and placed in a pot on a stove. If the stove's burner produces 1750W of power, and the efficiency of heat transmission to the water is 70%, how many minutes will it take before the water in the pot starts to boil? You can ignore the evaporation of water while it's heating up. The heat capacity of ice is 2.03J/g/K, the latent heat for melting ice is 333J/g. The heat capacity of water is 75.29J/K/mol and the latent heat for boiling water is 2260J/g. Answers should be within 2%. (a) First, what is the total energy corresponding to the largest contribution to the process of bringing the ice to boiling? (b) Total time before the water starts to boil: minutes