Carnot Efficiency
Carnot engine between 500 K and 300 K efficiency?
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About This Question
- Subject
- physics
- Chapter
- thermodynamics
- Topic
- carnot efficiency
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
0.40
- Carnot Theorem: No engine operating between two temperatures can be more efficient than a perfectly reversible Carnot engine.
- Efficiency Formula: η=1−ThotTcold, where temperatures must be in Kelvin.
- Given Data:
- Thot=500 K (Source)
- Tcold=300 K (Sink)
- Calculation:
- η=1−500300=1−0.60
- η=0.40.
- Unit Check: Efficiency is a dimensionless ratio. In percentage terms, this is 40%.
This easy difficulty physics question is from the chapter thermodynamics, covering the topic of carnot efficiency. It appeared in the 2025 exam.
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