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Questions  

Coefficients of Performance of refrigerator and efficiency if it is working as a Carnot engine are αR and η and according to given figure then correct option.

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By Expert Faculty of Sri Chaitanya
a
αR=Q1W, η=Q1W
b
αR=Q2W, η=WQ2
c
αR=Q2W, η=WQ1
d
αR=Q1W, η=Q2W

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detailed solution

Correct option is C

COP (α) =Desirable effect producedEnergy supplied to produce the desirable effect . For refrigerator desirable effect is Q2 . Efficiency of Carnot engine is work done Heat intake

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Similar Questions

A refrigerator, whose coefficient of performance β is 4, extracts heat from the cooling compartment at the
rate of 400 J per cycle. How much work per cycle is required to operate the refrigerator?  

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