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MHT CET20192 May 2019Morning ShiftPhysicsThermodynamicsActual

If α is the coefficient of performance of a refrigerator and ‘ Q 1 ’ is heat released to the hot reservoir, then the heat extracted from the cold reservoir ‘ Q 2 ’ is

Options

  1. Aα Q 1 α - 1
  2. Bα - 1 α Q 1
  3. Cα Q 1 1 + α
  4. D1 + α α Q 1

Correct answer

C. α Q 1 1 + α

Step-by-step solution

∵ α = Q 2 Q 1 - Q 2 ⇒ ∝ Q 1 - ∝ Q 2 = Q 2 ⇒ Q 2 = ∝ Q 1 1 + ∝

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