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If a carnot engine is working with source temperature at 227⁰C and sink temperature at 27⁰C, its efficiency will be
Options
(a) 40%
(b) 10%
(c) 67%
(d) 50%
Correct Answer:
40%
Explanation:
Efficiency of a Carnot engine η = 1 – (T₂ / T₁)
where T₁ is the temperature of the source and T₂ is the temperature of the sink.
Here, T₁ = 227°C = 500 K
T₂ = 27°C = 300 K
.·. η = 1 – (300/500) = 2/5 = 40 %.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An open pipe resonates with a tuning fork of frequency 500 Hz. It is observed
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
- When the wave of hydrogen atom comes from infinity into the first orbit,
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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