24. The efficiency of a Carnot engine is 35%. What is the temperature of the cold reservoir if the temperature of the hot reservoir is 500K?
24. The efficiency of a Carnot engine is 35%. What is the temperature of the cold reservoir if the temperature of the hot reservoir is 500K?
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
Related questions
Question
Solve Q24

Transcribed Image Text:22. A heat engine has an efficiency of 35% and receives 150J of heat per cycle.
How much work does it perform in each cycle?
a) 0
b)52.5J
c) 97.5J
d) 150J
23. What is the Carnot efficiency of an engine which operates between 430K and
300K?
a) 30%
b) 40%
c) 60%
d) 70%
24. The efficiency of a Carnot engine is 35%. What is the temperature of the cold
reservoir if the temperature of the hot reservoir is 500K?
a) 175K
b) 325K
c) 269K
d) 231K
25. A refrigerator removes heat from the freezing compartment at the rate of
20kJ and ejects 24kJ into a room per cycle. How much work is required in each
cycle?
a) 4kJ
b) 20kJ
c) 24kJ
d) 44kJ
26. State the 1st Law of Thermodynamics (in words.not the equation!)
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