a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this engine produce? b) Assume that the efficiency listed is the Carnot efficiency. What is the ratio of temperature of the cold reservoir to temperature of the hot reservoir? c) If the real ratio of temperature of the cold reservoir to temperature of the hot reservoir was less than you found in (b), would this engine violate the 2nd Law of Thermodynamics? Explain.
a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this engine produce? b) Assume that the efficiency listed is the Carnot efficiency. What is the ratio of temperature of the cold reservoir to temperature of the hot reservoir? c) If the real ratio of temperature of the cold reservoir to temperature of the hot reservoir was less than you found in (b), would this engine violate the 2nd Law of Thermodynamics? Explain.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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I don't understand question B and C?
Transcribed Image Text:a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much
work does this engine produce?
b) Assume that the efficiency listed is the Carnot efficiency. What is the ratio of
temperature of the cold reservoir to temperature of the hot reservoir?
c) If the real ratio of temperature of the cold reservoir to temperature of the hot
reservoir was less than you found in (b), would this engine violate the 2nd Law of
Thermodynamics? Explain.
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