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The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20⁰C, the temperature of the surroundings to which it rejects heat is
Options
(a) 11⁰C
(b) 21⁰C
(c) 31⁰C
(d) 41⁰C
Correct Answer:
31⁰C
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- Which one of the following is not a unit of young’s modulus?
- A nucleus of mass number 220, initially at rest, emits an α-particle. If the Q-value
- A carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
- A satellite of mass m revolves around the earth of radius R at a height x from
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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