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A Carnot refrigerator transfers heat from its inside (5.77 °C) to the room air outside (24.0°C)....
A Carnot refrigerator transfers heat from its inside (4.75 oC) to the room air outside (20.4...
A Carnot refrigerator transfers heat from its inside (4.75 oC) to the room air outside (20.4 oC). (a) Find the coefficient of performance of the refrigerator. (b) Determine the magnitude of the minimum work needed to cool 5.61 kg of water from 20.4 to 4.75 oC when it is placed in the refrigerator.
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
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 84.4 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 |QH| is rejected to the room? Express your answer in...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
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 21.6 ∘C. Suppose that liquid water with a mass of 77.6 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 . |QH| | Q H | = 2.797×107 J How much energy E must...
1) An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from...
1) 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 24.7 ∘C. Suppose that liquid water with a mass of 76.6 kg at 0.0∘C is converted to ice at the same temperature. Take the specific transformation energy for water to be Lf = 3.34×105 J/kg . Part A:- How much energy E must be supplied to the device? Express your answer...
Item 4 An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat...
Item 4 An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 compositefunction C and rejects heat to a room at a temperature of 20.6 compositefunction C. Suppose that liquid water with a mass of 82.1 kg at 0.0 compositefunction C is converted to ice at the same temperature. Take the heat of fusion for water to be L_f = 3.34 times 10^5 J/kg. Part A How much heat |Q_H| is...
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid...
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 24.9 ∘C. Suppose that liquid water with a mass of 71.5 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 Part complete How much heat |QH| is rejected to the room?...
Please help solve part (a) and (b). Thank you. A Carnot refrigerator (the reverse of a...
Please help solve part (a) and (b). Thank
you.
A Carnot refrigerator (the reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of -2degreeC and exhausts it into the room at 25degreeC. How much work must be done by the refrigerator to change 0.30 kg of water at 25degreeC into ice at -2degreeC? If the compressor output is 210 W, what minimum time is needed to accomplish this?
To keep a room at a comfortable 20.5°C, a Carnot heat pump does 315 J of...
To keep a room at a comfortable 20.5°C, a Carnot heat pump does 315 J of work and supplies the room with 4180 J of heat. (a) How much heat is removed from the outside air by the heat pump? (b) What is the temperature of the outside air?
QS. An air-conditioner with a power input of 1.5 kW is working as a refrigerator (B-3) or as a heat pump (B' 4). It...
QS. An air-conditioner with a power input of 1.5 kW is working as a refrigerator (B-3) or as a heat pump (B' 4). It maintains an office at 20C year round which exchanges 0.5 kW per degree temperature difference with the atmosphere. There is a range of the outside temperatures for which this unit is sufficient a) Write the expressions that define the coefficient of performance (COP) for a refrigerator (B) and a heat pump (B) b) Calculate the maximum...
1. Calculate (a) the maximum performance factor of a refrigerator between an inside temperature of -10°C and outsid...
1. Calculate (a) the maximum performance factor of a refrigerator between an inside temperature of -10°C and outside at STP and (b) the minimum amount of work to remove 100 of heat from inside the refrigerator
Item 4 An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 compositefunction C and rejects heat to a room at a temperature of 20.6 compositefunction C. Suppose that liquid water with a mass of 82.1 kg at 0.0 compositefunction C is converted to ice at the same temperature. Take the heat of fusion for water to be L_f = 3.34 times 10^5 J/kg. Part A How much heat |Q_H| is...
Please help solve part (a) and (b). Thank
you.
A Carnot refrigerator (the reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of -2degreeC and exhausts it into the room at 25degreeC. How much work must be done by the refrigerator to change 0.30 kg of water at 25degreeC into ice at -2degreeC? If the compressor output is 210 W, what minimum time is needed to accomplish this?
QS. An air-conditioner with a power input of 1.5 kW is working as a refrigerator (B-3) or as a heat pump (B' 4). It maintains an office at 20C year round which exchanges 0.5 kW per degree temperature difference with the atmosphere. There is a range of the outside temperatures for which this unit is sufficient a) Write the expressions that define the coefficient of performance (COP) for a refrigerator (B) and a heat pump (B) b) Calculate the maximum...
1. Calculate (a) the maximum performance factor of a refrigerator between an inside temperature of -10°C and outside at STP and (b) the minimum amount of work to remove 100 of heat from inside the refrigerator
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