A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 433 kW-h/y. Note: One kilowatt-hour (kW-h) is an amount of energy equal to operating a 1-kW appliance for one hour. (a) On average, how much energy does the freezer use in a single day? J (b) On average, how much thermal energy is removed from the freezer each day? J (c) What maximum amount of water at 17.0°C could the freezer freeze in a single day? (The latent heat of fusion of water is 3.33 ✕ 105 J/kg, and the specific heat of water is 4186 J/kg · K.) kg
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 433 kW-h/y. Note: One kilowatt-hour (kW-h) is an amount of energy equal to operating a 1-kW appliance for one hour. (a) On average, how much energy does the freezer use in a single day? J (b) On average, how much thermal energy is removed from the freezer each day? J (c) What maximum amount of water at 17.0°C could the freezer freeze in a single day? (The latent heat of fusion of water is 3.33 ✕ 105 J/kg, and the specific heat of water is 4186 J/kg · K.) kg
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 freezer has a coefficient of performance of 6.30. The freezer is advertised as using 433 kW-h/y. Note: One kilowatt-hour (kW-h) is an amount of energy equal to operating a 1-kW appliance for one hour.
(a) On average, how much energy does the freezer use in a single day?
J
(b) On average, how much thermal energy is removed from the freezer each day?
J
(c) What maximum amount of water at 17.0°C could the freezer freeze in a single day? (The latent heat of fusion of water is 3.33 ✕ 105 J/kg, and the specific heat of water is 4186 J/kg · K.)
kg
J
(b) On average, how much thermal energy is removed from the freezer each day?
J
(c) What maximum amount of water at 17.0°C could the freezer freeze in a single day? (The latent heat of fusion of water is 3.33 ✕ 105 J/kg, and the specific heat of water is 4186 J/kg · K.)
kg
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The refrigerator is a device (heat engine) that extracts energy from the sink and deposits on the source by means of external work.
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