1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
3 years ago
10

What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a

heat pump?
COP =
Physics
1 answer:
viktelen [127]3 years ago
8 0

Complete Question

A certain refrigerator, operating between temperatures of -8.00°C and +23.2°C, can be approximated as a Carnot refrigerator.

What is the refrigerator's coefficient of performance? COP

(b) What If? What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a heat pump? COP

Answer:

a

 COP = 8.49

b

  COP_1 = 9.49  

Explanation:

From the question we are told that

     The lower operation temperature of refrigerator is  T_1 =  -8.00^oC =  265 \  K

     The upper operation temperature of the refrigerator is   T_2 =  23.2 ^oC =  296.2 \  K

Generally the refrigerators coefficient of performance is mathematically represented as

        COP =  \frac{T_1}{T_2 - T_1  }

=>     COP =  \frac{265}{296.2 - 265  }

=>     COP = 8.49

Generally if a refrigerator (operating between the same temperatures) was instead used as a heat pump , the coefficient of performance is mathematically represented as

            COP_1 =  \frac{T_2}{ T_2 - T_1}  

=>         COP_1 =  \frac{296.2}{ 296.2 - 265 }  

=>         COP_1 = 9.49  

You might be interested in
What is the formula of moment of force​
Nat2105 [25]
Moment of force=fxd

Explain
M=fxd
4 0
3 years ago
What is the electric current measured in
cluponka [151]

An ampere (AM-pir), or amp

6 0
2 years ago
Please Someone Help me I Need Help ASAP PLEASE
dimaraw [331]
The match making one is Radiation is i think B and Convection i think is C and Conduction i think is A.  I think 1 is radiation. Because radiation is transferred between objects or an empty space. Number 2 i think is conduction Because conduction is the transfer of thermal energy between to objects touching. Number 3 i also i think is radiation because radiation transfers between objects. Number 4 i also think is conduction because the spoon was touching a hot pot that was on the stove so then the thermal energy was transferred between the two objects touching. number 5 I think is convection because convection is the transfer of energy by the movement of a fluid, such as air or water. Number 6 i think is radiation because the snake is not touching the lamp and radiation goes all across spaces. Number 7 i think is convection because convection is the movement of a fluid, such as air or water. Hope this helps sorry its so long :)      
4 0
3 years ago
How many electrons are depicted in the electron dot diagram of an electrically neutral nitrogen atom? A. two B. six C. eight D.
goldenfox [79]

Answer is D - five.


<em>Explanation;</em>


- Electron dot diagrams show the valence electrons around the element by using dots.


- Valence electrons are the electrons which are in outermost shell of the atom.


-The atomic number of the N atom is 7.

      Atomic number = number of protons = 7

  If the atom is neutral,

      number of protons = number of electrons.


  Hence, N atom has 7 electrons.


- The electron configuration is 1s² 2s² 2p³.


Hence, N atom has 2 + 3 = 5 valence electrons. So, five electrons are represented in electron dot diagram of N.

4 0
3 years ago
Read 2 more answers
A student measures the time it takes for two reactions to be completed reaction eight is completed and 57 seconds and reaction b
Maslowich
The answer to this problem is 1200
8 0
3 years ago
Other questions:
  • A bike rider does work to get to the top of a mountain. How could you use the law of conservation of energy to describe his trip
    14·1 answer
  • which of the following atomic models depicts electrons moving in waves, forming a cloud around the nucleus of an atom
    9·1 answer
  • If the radius of the Earth is roughly 3,960 miles, how many times larger is the volume of the Earth than the volume of a ping-po
    7·1 answer
  • V-I graphs for two wires A and B are shown in the figure. If we connect both the wires
    13·1 answer
  • The orbital velocity of the Earth about the sun is 30 km/s. If the Earth were suddenly stopped in its tracks, it would simply fa
    9·1 answer
  • Which measurement is a potential difference?
    12·1 answer
  • Can someone write a 200 speech that explains the difference between analog and digital waves and which one is better?
    8·1 answer
  • What do these two changes have in common?
    13·1 answer
  • 1. Using the data table below, model (draw) the orbital motion of the two planets (D and
    7·1 answer
  • Caroline, a piano tuner, suspects that a piano's G4 key is out of tune. Normally, she would play the key along with her G4 tunin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!