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 24.5 °C. Suppose that liquid water with a mass of 77.8 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. Part A How much heat |H| is rejected to the room? Express your answer in joules to four significant figures. ▸ View Available Hint(s) QH 2.832×107 J = Submit Previous Answers Part B Correct How much energy E must be supplied to the device? Express your answer in joules. ▸ View Available Hint(s) E= Submit ΤΟ ΑΣΦ ? J

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Chapter3: The First Law Of Thermodynamics
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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 24.5 °C.
Suppose that liquid water with a mass of 77.8 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.
Transcribed Image Text: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 24.5 °C. Suppose that liquid water with a mass of 77.8 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.
Part A
How much heat |H| is rejected to the room?
Express your answer in joules to four significant figures.
▸ View Available Hint(s)
QH 2.832×107 J
=
Submit
Previous Answers
Part B
Correct
How much energy E must be supplied to the device?
Express your answer in joules.
▸ View Available Hint(s)
E=
Submit
ΤΟ ΑΣΦ
?
J
Transcribed Image Text:Part A How much heat |H| is rejected to the room? Express your answer in joules to four significant figures. ▸ View Available Hint(s) QH 2.832×107 J = Submit Previous Answers Part B Correct How much energy E must be supplied to the device? Express your answer in joules. ▸ View Available Hint(s) E= Submit ΤΟ ΑΣΦ ? J
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