A refrigerator is characterized by a number called the coefficient of performance (COP), which is defined...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A refrigerator is characterized by a number called the coefficient of performance (COP), which is defined as the heat removed from the cool place (inside the fridge) divided by the work required to remove that heat: COP = QL/W. (a) If you are buying a new fridge is it better to buy one with a higher COP or a lower COP? O higher lower O it doesn't matter Let's say that a fridge operates between temperatures of 4°C and 27.0°C. A particular fridge has a COP of 4.30. (b) If 460 of work is done by the compressor in the fridge to extract heat from inside the fridge, how much heat is removed from inside the fridge? J (c) How much heat is dumped by the fridge into the surroundings, in this case? (d) What is the maximum possible COP that would be achieved by an ideal fridge operating between the two temperatures specified above? A refrigerator is characterized by a number called the coefficient of performance (COP), which is defined as the heat removed from the cool place (inside the fridge) divided by the work required to remove that heat: COP = QL/W. (a) If you are buying a new fridge is it better to buy one with a higher COP or a lower COP? O higher lower O it doesn't matter Let's say that a fridge operates between temperatures of 4°C and 27.0°C. A particular fridge has a COP of 4.30. (b) If 460 of work is done by the compressor in the fridge to extract heat from inside the fridge, how much heat is removed from inside the fridge? J (c) How much heat is dumped by the fridge into the surroundings, in this case? (d) What is the maximum possible COP that would be achieved by an ideal fridge operating between the two temperatures specified above?
Expert Answer:
Answer rating: 100% (QA)
Lets explore refrigerators and their coefficient of performance COP a Higher COP is better When shop... View the full answer
Related Book For
Posted Date:
Students also viewed these physics questions
-
A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
Consider each of the following situations. Indicate whether (and why or why not) you think that the governement should account for the transactions and resources in an agency fund, a governmental...
-
The Alaska plant produces two calculators and has two production departments: assembly and packaging. Information for the products is given below: The following table presents activity information...
-
A rustic cabin has a floor area of 3.50 m X 3.00 m, its walls, which are 2.50 m tall, are made of wood (thermal conductivity 0.0600 W 1m. K) 1.80 cm thick and are further insulated with 1.50 cm of a...
-
A positively charged particle is at rest on the positive \(z\) axis in reference frame \(S\). Reference frame \(S^{\prime}\) is moving along the positive \(x\) axis of \(\mathrm{S}\), reference frame...
-
Edna Recording Studios, Inc., reported earnings available to common stock of $4,200,000 last year. From those earnings, the company paid a dividend of $1.26 on each of its 1,000,000 common shares...
-
1. Electric potential is given by V=6x-8xy-8y+6yz - 4z Then magnitude of electric force acting on 2C point charge placed on origin will be :- (1) 2N (2) 6N (3) 8N (3) 8N (4) 20 N 2. Figure shows...
-
Alex was in his friend Allison's home drinking straight vodka and doing drugs. Alex told Allison that he has not taken his prescribed mental health medications for two weeks. This did not concern...
-
a. You want to retire in 30 years and be able to withdraw the equivalent of $90,000 per year (in today's dollars) from a retirement fund. Assume 3% inflation. You plan to be retired for 20 years....
-
Why is establishing brand loyalty important?
-
What are the three life-cycle phases, and what roles do they play when developing a brands visual and verbal identity?
-
According to Luc Dupont, there are seven different ways to position a brand. Define and explain each.
-
What should be avoided and what should be included in magazine advertising?
-
Define magazine advertising.
-
Gunna Ltd acquired a printing machine on 1 July 2018 for $100,000. It is expected to have a useful life of 5 years, with the benefits being derived on a straight-line basis. The residual is expected...
-
we have to compute the letter grades for a course. The data is a collection of student records stored in a file. Each record consists of a name(up to 20 characters), ID (8 characters), the scores of...
-
A wire has a length of 7.00 10-2 m and is used to make a circular coil of one turn. There is a current of 4.30 A in the wire. In the presence of a 2.50-T magnetic field, what is the maximum torque...
-
The Mariana trench is located in the floor of the Pacific Ocean at a depth of about 11 000 m below the surface of the water. The density of seawater is 1025 kg/m3. (a) If an underwater vehicle were...
-
A 75-kg diver is standing at the end of a diving board while it is vibrating up and down in simple harmonic motion, as indicated in the figure. The diving board has an effective spring constant of k...
-
Using an economic balance sheet, which of the Laws current financial assets is most concerning from an asset allocation perspective? A. Equities B. Real estate C. Fixed income Raye uses a costbenefit...
-
Using the economic balance sheet approach, the Laws economic net worth is closest to: A. $925,000. B. $1,425,000. C. $1,675,000. Raye uses a costbenefit approach to rebalancing and recommends that...
-
Raye believes the previous advisers specification for debt is incorrect given that, for purposes of asset allocation, asset classes should be: A. diversifying. B. mutually exclusive. C. relatively...
Study smarter with the SolutionInn App