A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one hour. The water starts at atemperature of 20.0 °C, and the ice that is produced is cooled toa temperature of -5.00 °C. (a) Howmuch heat is discarded into the room that houses the freezer?

A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one hour. The water starts at atemperature of 20.0 °C, and the ice that is produced is cooled toa temperature of -5.00 °C. (a) Howmuch heat is discarded into the room that houses the freezer?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 21P

See similar textbooks

Related questions

Q: An ideal heat pump is being considered for use in heating an environment with a temperature of…

A: Given: temperature of hot reservoir, TH = 22 degree C = 295 K Coefficient of performance, COP = 12…

Q: In a very mild winter climate, a heat pump transfers heat from an environment at 4.00 °C to one at…

Q: A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one…

A: The energy released when the water is cooled to the melting point is given by, Q1=mcwT'-T Here, m is…

Q: An engine has a hot reservoir that contains 20 MJ of heat energy at 400º c, and a cold reservoir…

A: Solution: Given that Qhot = 20 MJ Qcold = 15 MJ

Q: A refrigerator has a coefficient of performance of 4. If th absorbs 30 cal of heat from cold…

A: Given Coefficient of performance of a refrigerator , COP=4Refrigerator absorb heat from cold…

Q: The inner and outer surfaces of a 4-m * 10-m brickwall of thickness 20 cm are maintained at…

Q: In a refrigerator, one removes heat from a lower temperature and deposits to the surroundings at a…

A: Given data- Power of the motor P=1 kW Temperature of source- T1=27°C or T1=27+273…

Q: The ice maker inside a refrigerator makes ice cubes at 0.0°C from water that is at 17.2°C when it…

A: Given data The temperature of the water is Tw=17.2°C. The temperature of the ice is Ti=0°C. The…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The formula to find the coefficient of performance of the heat pump is, COPhp=1ηC=ThTh-TC Here Th…

Q: An automobile engine has an the heat rejected by the engine. efficiency of 20% and produces 6000 J…

A: Given value--- efficiency = 20 percent. Work = 6000 J. We need to find--- Find the heat rejected…

Q: A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one…

A: Total heat removed from water is as follows; Q=E1+E2+E3…

Q: Suppose you have an ideal refrigerator that cools an environment at -20.0C and has heat transfer to…

A: TH = 50 C = 323 K Tc = - 20 C = 253 K

Q: The temperature inside a Carnot refrigerator is4.60°C. What is the high temperature, Th, in Celsius…

A: Coefficient of performance of refrigerator is given by, COP = cooling effect/work input =…

Q: The coefficient of performance for a freezer is 7.8. How much heat must be extracted by the freezer…

Q: What is the efficiency of a gasoline engine that receives 194.5 J of energy from combustion and…

Q: What volume of water at 0°C can a freezer make into ice cubes in 1.0 h, if the coefficient of…

A: Freezing temperature, Tf = 0°C = 273 KTime, t = 1 h = 3600 sCoefficient of performance, Cp = 6Input…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

Q: A gas-cooled nuclear reactor operates between hot and cold reservoir temperatures of 700°C and…

Q: A refrigerator has a coefficient of performance of 3.25. How much work must be suppliedto this…

A: Given data: Coefficient of performance =3.25 Change in heat,Q=261 J Let work done be W: Applying The…

Q: What is the coefficient of performance of an ideal heat pump that pumps heat from a cold temperature…

A: given,TL=-23.9°C =249.25 KTH=32°C =305.15 Kcoefficient of performance:COP=THTH-TL

Q: Suppose you want to operate an ideal refrigerator that has a cold temperature of -7.5°C, and you…

A: Suppose you want to operate an ideal refrigerator that has a cold temperature of -7.5°C, and you…

Q: What is the best coefficient of performance possible for a hypothetical refrigerator that could make…

Q: Suppose you want to operate an ideal refrigerator with a cold temperature of -10.0C, and you would…

A: The temperature of the cold reservoir is, TC=-10+273 K=263 K The coefficient of performance of an…

Q: Suppose you want to operate an ideal refrigerator that has a cold temperature of -12.5°C, and you…

A: Temperature inside the refrigerator, Coefficient of performance of the refrigerator,

Q: A refrigerator (located in a 22°C kitchen) removes heat from the cold compartment (at 3.4°C) at a…

A: Given data: Higher temperature, TH=220C=22+273 K=295 K Lower temperature, TL=3.40C=3.4+273 K=276.4 K…

Q: A refrigerator uses 1750 J of mechanical work to absorb 3750J from cold reservoir at 260 K. What is…

A: Given: Mechanical work uses by refrigerator = 1750 J Desired effect from cold reservoir = 3750 J…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The coefficient of performance of ideal heat pump is given by, COP=THTH-TC Here, TH is the hot…

Q: A refrigerator removes heat from a freezing chamber at -8 ⁰F and discharges it at 99 ⁰F. What is its…

Q: Steam at 4 MPa and 35C is expanded in anadiabatic turbine to 120 kPa. What is the isentropic…

A: Given,

Q: A Carnot refrigerator extracts heat from a freezer at -5 degree C and exhausts it at 25 degree C .…

A: Convert the temperature from degree centigrade to Kelvin. And

Q: The temperature of the cold and hot reservoirs between which a Carnot refrigerator operates are −73…

A: The coefficient of performance of a Carnot refrigerator is given by, Given,

Q: In a real refrigerator, the low-temperature coils are at -13 C,and the compressed gas in the…

A: The equation for the theoretical coefficient of performance is

Q: If 1 kg of air at 250 kPaa pressure and 100°C were to be expanded at constant pressure in a closed…

Q: An engine with an efficiency of 0.34 absorbs 55 J from a heat reservoir in each cycle. If it…

Q: A steam engine operates between a high and low temperature of 550°C and 180°C. If the steam engine…

A: T high=th=550°C= 823 K T low = tl =180°C= 453 40 % of maximum efficiency Work at rate of = W =…

Q: What is the maximum efficiency of a heat engine operating between 68oF and 273 kelvins, the…

A: temperature T_1 =68 F =293.15Ktemperature T_2 =273 K the maximum efficiency of a heat engine…

Q: The highest possible efficiency of an engine operating between temperatures of 11 oC and 215 K is…

A: Given: The temperature of hot reservoir is 11oC = (11+273.15 )K = 284.15 K. The temperature of the…

Q: What volume of water at 0°C can a freezer make into ice cubes in 1.0 h, if the coefficient of…

A: Given data: Temperature of water is, T=0∘C. Time interval is, t=1.0 h=1.0 h×3600 s1 h=3600 s.…

Q: What is the best coefficient of performance possible for such a heat pump, if it has a hot reservoir…

A: The temperature of the hot reservoir is, TH=45.0°C+273=318 K The temperature of the cold reservoir…

Q: he remaining percent?

Q: A Carnot refrigerator operates between two heat reservoirs whosetemperatures are 0 °C and 25 °C.…

Q: In a very mild winter climate, a heat pump has heat transfer from an environment at 5.00ºC to one at…

A: Given: Tc = 5 degree C = 278 K Th = 35 degree C = 308 K

Q: A residential heat pump has a coefficient of performance of 2.4. How much heating effect, in Btu/h,…

Question

A freezer with a coefficient of performance of 3.88 is used to
convert 1.75 kg of water to ice in one hour. The water starts at a
temperature of 20.0 °C, and the ice that is produced is cooled to
a temperature of -5.00 °C. (a) How
much heat is discarded into the room that houses the freezer?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Suppose you want to operate an ideal refrigerator with a cold temperature of 10.0C, and you would like it to have a coefficient of performance 7.00. What is the hot reservoir temperature for such a refrigerator?
In performing 100.0 J of work, an engine discharges 50.0 J of heat. What is the efficiency of the engine?
A Carnot refrigerator, working between 0 and 30 is used to cool a bucket of water containing 102 m3 of water at 30 to 5 in 2 hours. Find the total amount of work needed.
A coal power plant consumes 100,000 kg of coal per hour and produces 500 MW of power. If the heat of combustion of coal is 30 MJ/kg, what is the efficiency of the power plant?
A coal power plant consumes 100,000 kg of coal per hour and produces 500 MW of power. If the heat of combustion of coal is 30 MJ/kg, what is the efficiency of the power plant?
What volume of water at 0°C can a freezer make into ice cubes in 1.0 h, if the coefficient of performance of the cooling unit is 6.0 and the power input is 1.2 kilowatt
A refrigerator has a coefficient of performance of 3.25. How much work must be suppliedto this refrigerator in order to remove 261 J of heat from its interior?
A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one hour. The water starts at atemperature of 20.0 °C, and the ice that is produced is cooled toa temperature of -5.00 °C. (a) How much electricalenergy does the freezer use during this hour of operation?
A freezer with a coefficient of performance of 3.88 is used toconvert 1.75 kg of water to ice in one hour. The water starts at atemperature of 20.0 °C, and the ice that is produced is cooled toa temperature of -5.00 °C. (a) How much heat must be removedfrom the water for this process to occur?
A refrigerator has a coefficient of performance of 2. The ice (cice = 2090 J/kg.oC) tray compartment is at –19°C, and the room temperature is 45°C. The refrigerator can convert 5.47 g of water (cwater = 4186 J/kg.oC) at 45°C to 5.47 g of ice at –19°C each minute. What input power (in W) is required? (Answer in 2 decimal places)
An inventor is marketing a device and claims that it takes 25. 00 kJ of heat at 327.00°C and discards heat to the environment at 27.00°C. What is the maximum possible efficiency of this engine?
A refrigerator operates between temperatures of 315 and 279 K. What would be its maximum coefficient of performance?