A refrigerator with COP=3.5 draws 800 W of electric power. At what rate can this refrigerator r

Name: Problem 25, Chapter 14: Essential College Physics
Uploaded: 2021-05-28T06:20:57-08:00
Duration: 1 min 52 s
Channel: Shahab Ullah
Description: A refrigerator with COP=3.5 draws 800 W of electric power. At what rate can this refrigerator remove heat from its interior? (a) 229 W; (b) 2000 W; (c) 2800 W : (d) 3600 W.

step 1 So this in this problem we are given the COP coefficient of performance of a refrigerator is equ

Question

A refrigerator with $\mathrm{COP}=3.5$ draws $800 \mathrm{~W}$ of electric power. At what rate can this refrigerator remove heat from its interior? (a) $229 \mathrm{~W}$; (b) $2000 \mathrm{~W}$; (c) $2800 \mathrm{~W}$ : (d) $3600 \mathrm{~W}$.

   A refrigerator with $\mathrm{COP}=3.5$ draws $800 \mathrm{~W}$ of electric power. At what rate can this refrigerator remove heat from its interior?
(a) $229 \mathrm{~W}$;
(b) $2000 \mathrm{~W}$;
(c) $2800 \mathrm{~W}$ :
(d) $3600 \mathrm{~W}$.

Essential College Physics

Andrew F. Rex,… 1st Edition

Chapter 14, Problem 25

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Solved by Expert Shahab Ullah

05/28/2021

Step 1

5 and the power it draws which is 800 W. We are asked to find the rate at which this refrigerator can remove heat from its interior. Show more…

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A refrigerator with $\mathrm{COP}=3.5$ draws $800 \mathrm{~W}$ of electric power. At what rate can this refrigerator remove heat from its interior? (a) $229 \mathrm{~W}$; (b) $2000 \mathrm{~W}$; (c) $2800 \mathrm{~W}$ : (d) $3600 \mathrm{~W}$.

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Key Concepts

Coefficient of Performance (COP)

The Coefficient of Performance (COP) is a measure of a refrigerator's efficiency. It is defined as the ratio of heat removed from the cooled space to the electrical energy input. A higher COP indicates that more heat is removed per unit of work, which means the system operates more efficiently.

Relationship Between Electrical Power and Heat Removal Rate

In refrigeration systems, the heat removal rate can be calculated by multiplying the COP by the electrical power consumed. This relationship allows engineers to determine how much heat can be extracted from the interior of the refrigerator given a specific amount of electrical energy input, making it a critical concept in thermal systems and energy efficiency.

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