How long in minutes does it take a 1000W electric kettle to bring 1.0L of water to the boiling point if the initial temperature of the water is 15 degC and the kettle is made of 400g of iron? Assume that no water is boiled, that no heat is lost to the surroundings and that the kettle is 100% efficient. b) kettle is 90% efficient How much heat energy is required to take 1.2kg of ice at -5 degC, and change it into liquid water at 15 degC?
How long in minutes does it take a 1000W electric kettle to bring 1.0L of water to the boiling point if the initial temperature of the water is 15 degC and the kettle is made of 400g of iron? Assume that no water is boiled, that no heat is lost to the surroundings and that the kettle is 100% efficient. b) kettle is 90% efficient How much heat energy is required to take 1.2kg of ice at -5 degC, and change it into liquid water at 15 degC?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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a) How long in minutes does it take a 1000W electric kettle to bring 1.0L of water to the boiling point if the initial temperature of the water is 15 degC and the kettle is made of 400g of iron? Assume that no water is boiled, that no heat is lost to the surroundings and that the kettle is 100% efficient. b) kettle is 90% efficient
How much heat energy is required to take 1.2kg of ice at -5 degC, and change it into liquid water at 15 degC?
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