An ice-making machine inside a refrigerator operates in aCarnot cycle. It takes heat from liquid water at 0.0 °C andrejects heat to a room at a temperature of 20.3 °C.Suppose that liquid water with a mass of 84.2 kg at 0.0 °Cis converted to ice at the same temperature.= 3.34×105Take the heat of fusion for water to be Lf =J/kg.How much heat |QH| is rejected to the room?Express your answer in joules to four significant figures.► View Available Hint(s)|QH|= 3.021×107 JSubmit Previous AnswersCorrectPart BHow much energy E must be supplied to the device?Express your answer in joules.

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An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 °C and rejects heat to a room at a temperature of 20.3 °C. Suppose that liquid water with a mass of 84.2 kg at 0.0 °C is converted to ice at the same temperature. Take the heat of fusion for water to be Lf = 3.34×105 J/kg. How much heat |QH| is rejected to the room? Express your answer in joules to four significant figures. ► View Available Hint(s) |QH|= 3.021×107 J Submit Previous Answers Correct Part B How much energy E must be supplied to the device? Express your answer in joules.

An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 °C and rejects heat to a room at a temperature of 20.3 °C. Suppose that liquid water with a mass of 84.2 kg at 0.0 °C is converted to ice at the same temperature. Take the heat of fusion for water to be Lf = 3.34×105 J/kg. How much heat |QH| is rejected to the room? Express your answer in joules to four significant figures. ► View Available Hint(s) |QH|= 3.021×107 J Submit Previous Answers Correct Part B How much energy E must be supplied to the device? Express your answer in joules.

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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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.

Question

An ice-making machine inside a refrigerator operates in a
Carnot cycle. It takes heat from liquid water at 0.0 °C and
rejects heat to a room at a temperature of 20.3 °C.
Suppose that liquid water with a mass of 84.2 kg at 0.0 °C
is converted to ice at the same temperature.
= 3.34×105
Take the heat of fusion for water to be Lf =
J/kg.
How much heat |QH| is rejected to the room?
Express your answer in joules to four significant figures.
► View Available Hint(s)
|QH|= 3.021×107 J
Submit Previous Answers
Correct
Part B
How much energy E must be supplied to the device?
Express your answer in joules.

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