The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is

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.

admin:

Related Questions

  1. In some region, gravitational field is zero. The gravitational potential
  2. If by mistake voltmeter is connected in series and ammeter in parallel then
  3. A stone thrown into still water, creates a circular wave pattern moving radially
  4. Two bulbs when connected in parallel to a source take 60W each, the power consumed,
  5. The electirc field in a certain region is acting radially outward and is given by E=Ar.