Carnot Engine
A Carnot engine works between temperatures 27°C and 127°C. The efficiency of the engine is:
Select the correct option:
Solution
25%
- Convert to Kelvin:
- Tsink=27+273=300 K.
- Tsource=127+273=400 K.
- Efficiency Formula: η=1−TsourceTsink.
- Calculation: η=1−400300=1−0.75=0.25.
- Percentage: η=25%.
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About This Question
- Subject
- physics
- Chapter
- thermodynamics
- Topic
- carnot engine
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
25%
- Convert to Kelvin:
- Tsink=27+273=300 K.
- Tsource=127+273=400 K.
- Efficiency Formula: η=1−TsourceTsink.
- Calculation: η=1−400300=1−0.75=0.25.
- Percentage: η=25%.
This easy difficulty physics question is from the chapter thermodynamics, covering the topic of carnot engine. It appeared in the 2025 exam.
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