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The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
Options
(a) 10
(b) 1
(c) 9
(d) zero
Correct Answer:
9
Explanation:
Coefficient of performance = K
.·. K = T₂ / (T₁-T₂) = 273 / (303-273) = 273 / 30 = 9.
Related Questions: - Which pair is isotonic?
- A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly
- The additional energy that should be given to an electron to reduce its de-Broglie
- A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω
- Ring, hollow ring and solid sphere are rolled down from inclined plane
Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which pair is isotonic?
- A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly
- The additional energy that should be given to an electron to reduce its de-Broglie
- A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω
- Ring, hollow ring and solid sphere are rolled down from inclined plane
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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