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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker
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IP The efficiency of a particular Carnot engine is 0.300.

Chapter 18, Problem 51P

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QUESTION:

Problem 51P

IP The efficiency of a particular Carnot engine is 0.300. (a) If the high-temperature reservoir is at a temperature of 545 K, what is the temperature of the low-temperature reservoir? (b) To increase the efficiency of this engine to 40.0%, must the temperature of the low-temperature reservoir be increased or decreased? Explain. (c) Find the temperature of the low-temperature reservoir that gives an efficiency of 0.400.

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QUESTION:

Problem 51P

IP The efficiency of a particular Carnot engine is 0.300. (a) If the high-temperature reservoir is at a temperature of 545 K, what is the temperature of the low-temperature reservoir? (b) To increase the efficiency of this engine to 40.0%, must the temperature of the low-temperature reservoir be increased or decreased? Explain. (c) Find the temperature of the low-temperature reservoir that gives an efficiency of 0.400.

ANSWER:

Step 1 of 4

Here, we have to calculate the temperature of the cold reservoir and how the change in efficiency will affect the temperature of the cold reservoir.

The equation for the efficiency of the Carnot’s engine is,

The equation for the efficiency of the Carnot engine is,

 ----------------------------(1)

Where,  - temperature of the cold reservoir

              - temperature of the hot reservoir

a)

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