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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.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The heat dissipated in a resistance can be obtained by measuring of resistance,
- A particle moves a distance x in time but according to equation x=(t+5)⁻¹
- A polished metal plate has a rough and black-spot. It is heated to 1400 K
- Four identical rods are joined to from a square. If the temperature difference
- For photoelectric emission from certain metal the cut-off frequency is v
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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