An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawing electric power at a rate of 6 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air.

An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawing electric power at a rate of 6 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air.

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

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 27P: A thermodynamic system undergoes a process in which its internal energy decreases by 500 J. Over the...

See similar textbooks

Related questions

Q: Can improved engineering and materials be employed in heat engines to reduce heat transfer into the…

A: Heat engine works in a cycle. Second law of thermodynamics implies that no system can entirely…

Q: If the change in internal energy is equal to 40.0 Joules in an adiabatic process, a. the work done…

Q: A C a d >V the path acb, 90.0 J of heat flows into the system and 50.0 J of work is done by the…

A: GIVEN :Along acb, heat into system q =90 J Work done W by system W =50J Along adb, Work done by…

Q: Is it possible to determine whether a change in internal energy is caused by heat transferred, by…

Q: A heavy hydrocarbon oil which has a Cp = 2.30 kJ/kg.K is being cooled in a heat exchanger from 371.9…

Q: A thermodynamic system undergoes a process in which its internal energy decreases by 600 J. Over the…

Q: When hot-air furnaces are used to heat a house, why is itimportant that there be a vent for air to…

A: A hot-air furnace heats primarily by air convection. For the convective currents to be completely…

Q: calculate the change in internal energy of a system if 300J of heat energy is added to it and if the…

A: Let the heat energy added to the system is denoted by q and the work done by the system is W.

Q: Calculate the net work output of a heat engine following path ABCDA in the figure below.

Q: Is the principal concern in the study of thermodynamics the amount of internal energy in a system or…

A: In thermodynamics, the chief concern is the change in inward vitality in a substance.

Q: A thermodynamic system undergoes a process in which its internal energy decreases by 500 J. Over the…

A: The expression for the required transferred energy is,

Q: A rigid container that measures 3 ft3 is divided into two equal portions and separated by a thin…

A: The rigid container is divided into two equal portions.

Q: According to the first law of thermodynamics, under what conditions would it be possible for a…

A: Yes. The internal energy of the system will not change if it performs the same amount of work as the…

Q: Is it possible for the temperature of a system to remain constant when heat Flows into or out of it?…

A: Yes, it is possible for the temperature of a system to remain constant when heat flows into or out…

Q: The ground temperature a few meters below the surface is fairly constant throughout the year and is…

A: It has been observed that the temperature below the ground is more stable than the temperature above…

Q: When an ideal is subjected to an isothermal process, (a) now work is done by the system (b) no heat…

Q: *101. ao ssm An ideal, or Carnot, heat pump is used to heat a house to a temperature of 294 K (21…

Q: Work of 2000 J is done on an ideal gas, but the internal energy increases by only 1700 J. What is…

Q: What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ…

A: Energy conservation law states that Energy can never be created or destroyed, it can only be…

Q: A food department is kept at 212°C by a refrigerator in an environment at 30°C. The total heat gain…

Q: | ssm In exercising, a weight lifter loses 0.150 kg of water *7. through evaporation, the heat…

Q: Cold water at 10°C enters a water heater at the rate of 0.02 m3/min and leaves the water heater at…

A: The water mass flow rate is The rate of heat supplied to the water is

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: Please help me with all the parts of this question, please also double check your answers as…

Q: -What is the change in internal energy of a system which does 3.5 x 10^5 J of work while 3.00×10^6 J…

A: Given data The work done by the system is W = 3.5 x 105 J. The heat transferred to the system is…

Q: A Carnot heat pump is used to heat and maintain a residential building at 22°C. An energy analysis…

A: Given : TH = 22°C = 22 + 273 = 295 K Q = 2500 kJ/h°C TL = 4°C = 4 + 273 = 277 K

Q: An air conditioner with refrigerant-134a as the working fluid is used to keep a room at 23°C by…

A: The given values are, From the properties of R-134a at the inlet and outlet of the compressor,

Q: Suppose as a system increases in volume, it absorbs 52.5J of energy in the form of heat from the…

A: Consider a system takes ΔQ amount of heat and spent it by doing work against pressure P to increase…

Q: A system gains 1500 J of heat, while the internal energy of the system increases by 4500 J and the…

A: Introduction Given data:- dQ = +1500 J dU = + 4500 J…

Q: In an isochoric process, the internal (thermal) energy of an ideal gas decreases by 50 J. How much…

A: Process : Isochoric (constant volume)Change in thermal (internal) energy = - 50 J Negative sign…

Q: In an air compressor the compression takes place at a constant internal energy such that 50 kJ of…

A: First law of thermodynamics

Q: The first law of thermodynamics relates the heat transfer into or out of a system to the change of…

A: The first law of thermodynamics can be written as, ΔU=Q-W Here, ΔU is the change in internal energy…

Q: Determine the following: (1) Total change in internal energy, (2) Heat absorbed by the air, and (3)…

A: 3) The air’s initial temperature is 280 F or (270.92 K). The air’s final temperature is 860 F or…

Q: A system undergoes an adiabatic process in which its internal energy increases by 20 J. Which of the…

Q: In a cyclic process, heat transfers are + 14.7 kJ, – 25.2 kJ, – 3.56 kJ and + 31.5 kJ. What is the…

A: we know that in a cyclic process net change in internal energy will be zero. and net work will be…

Q: An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawin electric…

A: (a) Given that, The heat removed is given as Qc=750 kJmin×1 min60 sQc=12.5 kJs Work, W=5.25…

Q: (2) lihäi The coefficient of performance of a heat pump that is removing heat from the cold outdoors…

Q: Determine the change in energy in the system in the following three processes: a. The system absorbs…

A: Given In Process a The system absorbs 400 cal of heat and at the same time do 400 J of work, In…

Question

An air conditioner removes heat steadily from a house
at a rate of 750 kJ/min while drawing electric power at a
rate of 6 kW. Determine (a) the COP of this air conditioner
and (b) the rate of heat transfer to the outside air.

Video Video

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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

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

A system does 1.95 × 108 J of work while 7.5 × 108 J of heat is transferred from the system to the environment. -what is the change in the internal energy, in joules, of the system assuming there are no other changes (such as in temperature or by the addition of fuel?
A system does 1.80×108 J of work while 7.50×108J of heat transfer occurs to the environment. What is the change in internal energy of the system assuming no other changes (such as in temperature or by the addition of fuel)?
Work of 2000 J is done on an ideal gas, but the internal energy increases by only 1700 J. What is the amount and direction of heat flow into or out of the system?
A system does 1.80×108 J of work while 7.50×108 J of heat transfer occurs to the environment. What is the change in internal energy of the system assuming no other changes (such as in temperature or by the addition of fuel)?
The efficiency of an engine is 0.510. For every 1.20 kJ of heat absorbed by the engine, how much net work is done by it? For every 1.20 kJ of heat absorbed by the engine, how much heat is released by it?
In a cyclic process, heat transfers are + 14.7 kJ, – 25.2 kJ, – 3.56 kJ and + 31.5 kJ. What is the net work for this cyclic process?
The ground temperature a few meters below the surface is fairly constant throughout the year and is near the average value of the air temperature. In areas in which the air temperature drops very low in the winter, the exterior unit of a heat pump designed for heating is sometimes buried underground in order to use the earth as a thermal reservoir. Why is it worthwhile to bury the heat exchanger, even if the underground unit costs more to purchaseand install than one above ground?
In a thermodynamic process, 1500 J of heat flows into the system and, at the same time, the system expands against a constant external pressure of 9.00 × 104 Pa. If the volume of the system increases from 0.020 m3 to 0.050 m3, calculate the change in internal (thermal) energy of the system.