54. A Carnot engine operates with a large hot reservoir and a muchsmaller cold reservoir. As a result, the temperature of the hot reservoirremains constant while the temperature of the cold reservoir slowly increases. This temperature change decreases the effi ciency of the engineto 0.70 from 0.75. Find the ratio of the fi nal temperature of the cold reservoir to its initial temperature.

54. A Carnot engine operates with a large hot reservoir and a muchsmaller cold reservoir. As a result, the temperature of the hot reservoirremains constant while the temperature of the cold reservoir slowly increases. This temperature change decreases the effi ciency of the engineto 0.70 from 0.75. Find the ratio of the fi nal temperature of the cold reservoir to its initial temperature.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 20.12OQ: If a gas is compressed isothermally, which of the following statements is true? (a) Energy is...

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