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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
- The wave described by y = 0.25 sin (10 2πx – 2πt), where x and y are in meters
- Two particles A and B having equal charges +6C, after being accelerated
- A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane
- A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
- Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube.
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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