The inside and outside temperatures of a refrigerator are 273 K and 303 K respectively. Assumi

Name: Problem 64, Chapter 17: Arihant AIEEE Physics
Uploaded: 2021-09-22T07:39:51-08:00
Duration: 1 min 57 s
Channel: Ajay Singhal
Description: The inside and outside temperatures of a refrigerator are 273 K and 303 K respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be: (a) 10 J (b) 20 J (c) 30 J (d) 50 J

step 1 Hello, students. In this question, we have given the temperature inside. So suppose this is temp

Question

The inside and outside temperatures of a refrigerator are $273 \mathrm{~K}$ and $303 \mathrm{~K}$ respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be: (a) $10 \mathrm{~J}$ (b) $20 \mathrm{~J}$ (c) $30 \mathrm{~J}$ (d) $50 \mathrm{~J}$

   The inside and outside temperatures of a refrigerator are $273 \mathrm{~K}$ and $303 \mathrm{~K}$ respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be:
(a) $10 \mathrm{~J}$
(b) $20 \mathrm{~J}$
(c) $30 \mathrm{~J}$
(d) $50 \mathrm{~J}$

Arihant AIEEE Physics

D.B. Singh 2006 Edition

Chapter 17, Problem 64

Instant Answer

Solved by Expert Ajay Singhal

09/22/2021

Step 1

Step 1: Let's denote the inside temperature of the refrigerator as $T_2 = 273 \mathrm{~K}$ and the outside temperature as $T_1 = 303 \mathrm{~K}$. Show more…

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The inside and outside temperatures of a refrigerator are $273 \mathrm{~K}$ and $303 \mathrm{~K}$ respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be: (a) $10 \mathrm{~J}$ (b) $20 \mathrm{~J}$ (c) $30 \mathrm{~J}$ (d) $50 \mathrm{~J}$

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Key Concepts

Coefficient of Performance (COP)

The coefficient of performance is a measure of a refrigeration system's efficiency, defined as the ratio of the thermal energy removed from the cold space (or delivered to the hot space) to the work input. In an ideal reversible cycle, this ratio is determined solely by the temperatures of the cold and hot reservoirs.

Reversible Processes

A reversible process is an idealized thermodynamic process that can be reversed without leaving any change in both the system and its surroundings. In the context of refrigeration cycles, assuming reversibility allows the application of Carnot principles, which lead to maximum theoretical performance.

Carnot Refrigerator

A Carnot refrigerator is an idealized refrigeration cycle that operates reversibly between two temperature reservoirs. It establishes the maximum possible coefficient of performance (COP) based solely on the reservoirs’ temperatures, serving as a benchmark for real systems.

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